Wednesday, January 5, 2011

First Living Cells

by Slawomir Puk, Factoidz Writer (Ranked #23 expert in Biology & Nature)

This first live forebear of all living things, including Man himself, was formed by chance, probably over 3,500 million years ago. Scientists have shown that the building blocks of life – carbon-containing organic molecules – existed on Earth, and in space, soon after the planet’s formation 4,600 million years ago. They were in the gases that made Earth’s atmosphere, in the outpourings of volcanic eruptions, in the meteorites that pounded the young planet – and even in the dust of space itself.

Space probes by the US and former Soviet Union have confirmed that carbon molecules exist in the icy bodies and tails of comets, such as Halley’s comet, which periodically passed close to Earth. Astronomers have identified 75 different interstellar complex molecules that have come into being in the star-forming clouds of space. Living cells need protein molecules to form their structure, and DNA (deoxyribonucleic acid) molecules to hold information on how to develop. Both protein and DNA are formed from other molecules, called amino acids and bases. These consist of even simpler molecules. The odds against the correct combinations coming together by chance are enormous. Yet somehow, within the Earth’s first five thousand million years, they did.

Lighting bolts from electrical storms bombarded the Earth and its watery surface, where shallow pools lay rich with organic molecules – a warm soup of potential life. Massive doses of ultraviolet radiation from the sun poured down into the atmosphere and on to the surface, as yet unprotected by oxygen and an ozone layer. Great numbers of meteorites – some probably containing complex molecules such as amino acids – pierced the unresisting atmosphere and plummeted to Earth. Lava and hot gases poured out of volcanic fissures and spewed violently forth from eruptions, creating hot-spots in the atmosphere, and adding more gases to its composition.

Single cell life

Triggered by the energy from these violent natural events, the molecules in the primeval soup joined up to form complex chains. So a few hundred million years after the Earth’s formation, all the components of living cells were present in the ocean and it was only a matter of time before they were organized into cells. These came into being when various fats and protein joined together to form an outer membrane. This separated the contents of the cell from the water it floated in.

For over 2,000 million years, cells remained tiny and primitive, each hardly and thousandth of a millimetre in diameter. The first living cell split into two, each containing the DNA information necessary for further development. Two became four, and four became eight. Eventually those cells lived in teeming accumulations, millions to the cubic centimetre.

Cell mutations

As these cells reproduced, slight changes or mutations occurred in them. Sometimes these chance mutations were favourable and they helped the cell survive, often in conditions different from those in which the parent cell lived. Some cells eventually mutated into a life form that contained chlorophyll, the substance that makes plants green. With the assistance of chlorophyll, these cells started to make sugars using the energy of sunlight.

The sunlight – using cells needed hydrogen for energy conversion. They obtained it by splitting water molecules into their separate hydrogen and oxygen components. The cells used the hydrogen and released the oxygen as waste, Great matted masses of these oxygen gen-releasing cells lived in warm, shallow seas. After hundreds of millions of years, oxygen build up into a significant ingredient in the Earth’s atmosphere.

A new type of cell began to develop about 1,400 million years ago. Dependent on oxygen, this new cell was larger and much more complex. It had special nucleus for its DNA, and had at least a thousand times as much earlier, more primitive cells. Called a eukaryote, which means true nucleus, the new cell developed the ability to join up with other cells and share genetic information, so that their offspring’s had a much larger fund of genetic possibilities. Eukaryotes also became capable of forming multi-celled organisms, in which the individual cells have particular tasks. Nearly all life in today’s world is formed of eukaryote cells. The first fossils of multicellular life forms are 750 million years old

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First Living Cell

Building the Great Pyramid

By Dr Ian Shaw
Last updated 2010-12-21

A reconstruction of pyramid-builders hauling a limestone block

The recent robotic explorations of the 'air-shafts' in the Great Pyramid have demonstrated that there are still many mysteries surrounding the ancient monument. Ian Shaw discusses the debate around the building of the great structure and investigates the methods used in its construction.

Great debate

Since at least the time of the ancient Greeks, there has been considerable debate about exactly how the Egyptians constructed King Khufu's Great Pyramid at Giza.

A reconstruction of a pyramid-worker chiselling stone in a quarry A reconstruction of a pyramid-worker chiselling stone in a quarry © Few texts concerning Egyptian engineering methods have survived the centuries, and in recent years experimental archaeology has been the main means for discovering the methods used for building the structure. Despite this, there are still many questions concerning the quarrying, dressing and transportation of the stone building blocks, let alone the methods by which they were placed meticulously in position. And there are further questions still about how the gigantic edifice was erected on a totally horizontal base, and aligned precisely with the stars.

Levelling

Flinders Petrie Flinders Petrie standing outside a tomb at Giza in which he lived for two years © Between 1880 and 1882, Flinders Petrie, the first truly scientific archaeologist to work in Egypt, undertook some careful survey work on the Giza plateau. This was the site of the pyramid complexes of the rulers Khufu, Khafra and ë - all of whom lived in the Fourth Dynasty.

The results of Petrie's work suggested to him that the Egyptians had levelled the area intended for the Great Pyramid by cutting a grid of shallow trenches into the bedrock, flooding them with water, and reducing the intervening 'islands' of stone to the necessary height.

...in the 1980s the American Egyptologist Mark Lehner began to produce a meticulous new map of the plateau...

After this was suggested, for most of the next century, there was surprisingly little archaeological work on the pyramids at Giza, but in the 1980s the American Egyptologist Mark Lehner began to produce a meticulous new map of the plateau, incorporating the various holes and trenches cut into the rock around the pyramids. On the basis of this project, Lehner argued that the Egyptians had in fact not levelled the whole area intended for the pyramids, but had simply ensured that the narrow perimeter strips around the edges of the pyramid were as perfectly horizontal as possible.

Raising blocks

Experts have also talked a lot about the methods by which individual stone blocks were raised into position. Since the Egyptians made no use of block and tackle methods, or cranes, it is usually assumed that wooden and bronze levers were used to manoeuvre the blocks into position.

...it is usually assumed that wooden and bronze levers were used to manoeuvre the blocks into position.

The level of structural engineering was incredibly high in the internal chambers of the Great Pyramid. Indeed, the roof of the so-called Grand Gallery was the Egyptians' earliest attempt at corbel-vaulting on a colossal scale. The architects surmounted particularly difficult logistics in the creation of the corridor leading up to the main burial chamber of the Great Pyramid (the so-called King's Chamber). The corridors in other pyramids are all either level or sloping downwards, whereas this one slopes steeply upwards, which would have presented problems when it came to blocking the passage with granite plugs, after the king's body had been placed in the chamber.

Inside the Great Pyramid ©

It is clear from the fact that the plugs in this 'ascending corridor' are an inch wider than the entrance that the plugs must have been lowered into position not from the outside, as was usually the case, but from a storage position within the pyramid itself (perhaps in the Grand Gallery). It is also clear that the design had to allow the workmen who pushed the plugs into position to be able to escape down a shaft leading from the Grand Gallery to the 'descending corridor', through which they could exit.

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Quarrying

Pink granite from the pyramid of Khafra at Giza Pink granite from the pyramid of Khafra at Giza © The King's Chamber was made entirely from blocks of Aswan granite. Since the Second Dynasty, granite had frequently been used in the construction of royal tombs. The burial chambers and corridors of many pyramids from the Third to the Twelfth Dynasty were lined with pink granite, and some pyramids were also given granite external casing (eg those of Khafra and Menkaura, at Giza) or granite pyramidia (cap-stones).

...around 45,000 cubic metres of stone were removed from the Aswan quarries during the Old Kingdom...

The Aswan quarries are the only Egyptian hard-stone workings that have been studied in detail. It has been estimated, on the basis of surviving monuments, that around 45,000 cubic metres of stone were removed from the Aswan quarries during the Old Kingdom (Third to Sixth Dynasties). It seems likely that loose surface boulders would have been exploited first.

It is unclear what kinds of tools were used for quarrying during the time of the pharaohs. The tool marks preserved on many soft-stone quarry walls (eg the sandstone quarries at Gebel el-Silsila) suggest that some form of pointed copper alloy pick, axe or maul was used during the Old and Middle Kingdoms, followed by the use of a mallet-driven pointed chisel from the Eighteenth Dynasty onwards. This technique would, however, have been unsuitable for the extraction of harder stones such as granite. As mentioned above, Old Kingdom quarriers were probably simply prising large boulders of granite out of the sand.

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Cutting blocks

A quarry floor showing quarrying marks made by the ancient Egyptians A quarry floor showing quarrying marks made by the ancient Egyptians © There has been much debate concerning the techniques used by ancient Egyptians to cut and dress rough-quarried granite boulders or blocks for use in masonry. No remnants of the actual drilling equipment or saws have survived, leaving Egyptologists to make guesses about drilling and sawing techniques on the basis of tomb-scenes, or the many marks left on surviving granite items such as statues.

...copper alloy drills or saws would have worn away rapidly if used to cut through granite without assistance.

In recent years, however, a long series of archaeological experiments has been undertaken by the British Egyptologist Denys Stocks. Like many previous researchers, Stocks recognised that the copper alloy drills or saws would have worn away rapidly if used to cut through granite without assistance. He therefore experimented with the addition of quartz sand, poured in between the cutting edge of a drill and the granite, so the sharp crystals could give the drill the necessary 'bite' into the rock, and found that this method could work. It seems a practical solution, as no special teeth would have been needed for the masons' tools, only a good supply of desert sand - and this theory is gaining acceptance in academic circles.

...there is still a great deal that remains mysterious about the basic structure of pyramids...

As the recent robotic explorations of the so-called air-shafts in the Great Pyramid have demonstrated, there is still a great deal that remains mysterious about the basic structure of pyramids, and the technology that created them. If we are to gain a better understanding of pyramid-building, the best way seems to be a blend of detailed study of the archaeological remains and various kinds of innovative experimental work. Above all, this is the kind of research that relies on collaboration between Egyptologists and specialists in other disciplines, such as engineering, geology and astronomy.

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Find out more

Read on: a bibliographical essay

As far as stone masonry is concerned, many volumes have been published describing the surviving remains of pharaonic temples and tombs, whether in the form of traveller's accounts, archaeological reports or architectural histories (Badawy 1954-68, Smith 1958, being the first attempts to provide comprehensive historical surveys).

Although there have been many meticulous studies of specific sites or buildings, only a few - notably Petrie's surveys of the pyramids at Giza and Meydum in 1883 and 1892 - have focused on the technological aspects of the structures. On the other hand, it is remarkable that, despite Petrie's concern with the minutiae of many aspects of craftwork and tools, his general works include no study of the structural engineering of the Pharaonic period.

This gap in the literature began to be filled in the 1920s with Reginald Engelbach's studies of obelisks (Engelbach 1922, 1923), Ludwig Borchardt's many detailed studies of pyramid complexes and sun temples (eg Borchardt 1926, 1928), and the first edition of Alfred Lucas' Ancient Egyptian Materials and Industries (Lucas 1926), which included a substantial section devoted to the scientific study of stone working.

However, the first real turning point arrived in 1930 with the publication of Ancient Egyptian Masonry, in which Engelbach collaborated with Somers Clarke to produce a detailed technological study of Egyptian construction methods from quarry to building site (Clarke and Engelbach 1930).

The meticulous excavations of George Reisner at Giza and elsewhere soon afterwards bore fruit in the form of the publication of The Development of the Egyptian Tomb down to the Accession of Cheops (Reisner 1936), and Reisner's work at Giza was later supplemented by the architectural reconstruction of the Step Pyramid of Djoser at Saqqara by Jean-Philippe Lauer, whose Observations sur les pyramides (Lauer 1960) was also informed by a sense of the fundamental practicalities of ancient stone masonry.

Both I.E.S. Edwards (1947, 5th ed. 1993) and Rainer Stadelmann (1985) produced general books on Egyptian pyramids which built on the observations of Borchardt, Reisner, Lauer and others, including substantial discussion of the technological problems encountered by Pharaonic builders.

Christopher Eyre (1987) has provided a detailed study of the textual and visual evidence for the organization of labour in the Old and New Kingdoms, which includes a great deal of data relating to quarrying and building (particularly covering such questions as the composition, management and remuneration of the workforce involved in procuring, transporting and working stone, as well as the timing of quarrying and construction projects).

Most recently, Dieter Arnold's Building in Egypt: Pharaonic Stone Masonry, published in 1991, is a wide-ranging study of the data, including meticulous discussion of the surviving evidence for quarrying and stone-working tools, and sophisticated, well-illustrated studies of the grooves and marks on stone blocks which can indicate many of the ways in which they were transported, manoeuvred into position and interlocked with the rest of the masonry. Like Clarke and Engelbach's Ancient Egyptian Masonry, it serves as an essential and welcome basis for all future study of Pharaonic stone masonry. Arnold's primary concern is with the technology rather than the materials; for a detailed discussion of the different types of stone utilised by the Egyptians in art and architecture, see De Putter and Karlshausen (1992).

Links

The Giza Mapping Project. Under the direction of Mark Lehner, the project is dedicated to research on the geology and topography of the Giza plateau, the construction and function of the Sphinx, the Great Pyramids and the associated tombs and temples.

PBS - Pyramids: The Inside Story. The site allows you to tour the insides of the pyramids at Giza and includes interviews with Egyptologists such as Mark Lehner and Zawi Hawass.

Fathom: The World of the Pyramids. Fathom offers online learning experiences, developed with leading scholars and experts, including in-depth courses and free seminars, shorter features, interviews and articles.

The Egypt Exploration SocietyThe Society was founded in 1882 to fund and mount archaeological expeditions to Egypt, and to publish the results. This work continues today at sites such as Amarna, Memphis and Qasr Ibrim in Egyptian Nubia, and is published in full in a series of monographs, the annual Journal of Egyptian Archaeology and bi-annual magazine, Egyptian Archaeology. Membership of the Society is open to all those interested in ancient Egypt, indeed without its members' subscriptions the Society could not continue to operate.

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About the author

Ian Shaw is Lecturer in Egyptian Archaeology at the University of Liverpool. He excavates regularly in Egypt, and his research interests include Egyptian urbanisation, ancient technology and the provenancing of ancient materials. From 1986 to 1990 he edited the ancient Egyptian section of the Macmillan Dictionary of Art. From 1990 to 1994, he undertook research into Egyptian quarrying and mining sites as a British Academy Research Fellow at New Hall, Cambridge. From 1994 to 1999 he was Lecturer in Egyptian Archaeology at the Institute of Archaeology, University College London. He is the author of Egyptian Warfare and Weapons (Shire Publications, 1992) and Exploring Ancient Egypt (Oxford University Press, 2003), co-author of the British Museum Dictionary of Ancient Egypt (British Museum Press, 1995), editor of The Oxford History of Ancient Egypt (Oxford University Press, 2000), and co-editor of Ancient Egyptian Materials and Technology (Cambridge University Press, 2000) and Blackwell's Dictionary of Archaeology (Basil Blackwell, 1999).


Source: BBC

First Time Keeping Device

History of timekeeping devices

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An hourglass keeping track of elapsed time. The hourglass was one of the earlier timekeeping devices

For thousands of years, devices have been used to measure and keep track of time. The current sexagesimal system of time measurement dates to approximately 2000 BC, in Sumer. The Ancient Egyptians divided the day into two 12-hour periods, and used large obelisks to track the movement of the Sun. They also developed water clocks, which were probably first used in the Precinct of Amun-Re, and later outside Egypt as well; they were employed frequently by the Ancient Greeks, who called them clepsydrae. The Shang Dynasty is believed to have used the outflow water clock around the same time, devices which were introduced from Mesopotamia as early as 2000 BC. Other ancient timekeeping devices include the candle clock, used in China, Japan, England and Iraq; the timestick, widely used in India and Tibet, as well as some parts of Europe; and the hourglass, which functioned similarly to a water clock.

The earliest clocks relied on shadows cast by the sun, and hence were not useful in cloudy weather or at night and required recalibration as the seasons changed (if the gnomon was not aligned with the Earth's axis). The earliest known clock with a water-powered escapement mechanism, which transferred rotational energy into intermittent motions,[1] dates back to 3rd century BC ancient Greece;[2] Chinese engineers later invented clocks incorporating mercury-powered escapement mechanisms in the 10th century,[3] followed by Arabic engineers inventing water clocks driven by gears and weights in the 11th century.[4]

Mechanical clocks employing the verge escapement mechanism were invented in Europe at the turn of the 14th century, and became the standard timekeeping device until the spring-powered clock and pocket watch in the 16th century, followed by the pendulum clock in the 18th century. During the 20th century, quartz oscillators were invented, followed by atomic clocks. Although first used in laboratories, quartz oscillators were both easy to produce and accurate, leading to their use in wristwatches. Atomic clocks are far more accurate than any previous timekeeping device, and are used to calibrate other clocks and to calculate the proper time on Earth; a standardized civil system, Coordinated Universal Time, is based on atomic time.

Source: wikipedia

History of Playing Card

History of Playing-Cards


Other lands - other cards

This brief history is based on a leaflet prepared by John Berry to provide background for the Exhibition 'The World of Playing Cards' at the Guildhall Library, London, from September 1995 to March 1996.

Introduction

English playing-cards are known and used all over the world - everywhere where Bridge and Poker are played. In England, the same pack is used for other games such as Whist, Cribbage, Rummy, Nap and so on. But in other European countries games such as Skat, Jass, Mus, Scopa, and Tarock are played, using cards of totally different face-designs many of them with roots far older than English cards. The history of these national and regional patterns has only recently become the concern of students and collectors.

As many travellers to more southerly parts of Europe can tell, the familiar suits of Hearts Spades Diamonds and Clubs give way to quite different sets of symbols: Hearts Leaves Bells (round hawkbells) and Acorns in Germany; Shields 'Roses' Bells and Acorns in Switzerland; Coins Cups Swords and Clubs (cudgels) in Spain and Mediterranean Italy; Coins Cups Swords and Batons in Adriatic Italy. In the latter region, in particular, local packs of cards have a decidedly archaic look about them - which reflects the designs of some of the earliest cards made in Europe.

Enigmatic origins-from East to West

The earliest authentic references to playing-cards in Europe date from 1377, but, despite their long history, it is only in recent decades that clues about their origins have begun to be understood. Cards must have been invented in China, where paper was invented. Even today some of the packs used in China have suits of coins and strings of coins - which Mah Jong players know as circles and bamboos (i.e. sticks). Cards entered Europe from the Islamic empire, where cups and swords were added as suit-symbols, as well as (non-figurative) court cards. It was in Europe that these were replaced by representations of courtly human beings: kings and their attendants - knights (on horseback) and foot-servants. To this day, packs of Italian playing-cards do not have queens - nor do packs in Spain, Germany and Switzerland (among others). There is evidence that Islamic cards also entered Spain, but it now seems likely that the modern cards which we call Spanish originated in France, ousting the early Arab-influenced designs.

Variations on the original theme

In Germany and Switzerland, the two lower court cards are both on foot, representing an 'upper' and a 'lower' rank-as stated in the 1377 description of playing-cards. Switzerland also preserves another feature of early German cards. The tens are represented by a banner, showing just one suit-symbol-though many old German banners show ten symbols. In these countries also, the 52-card pack was shortened to 48 cards by dropping the Aces. The deuce, or Daus, was then promoted to being the top card, and nowadays often carries the letter A as if it were an ace. The pack was then shortened even further. German single-figure packs habitually carried delightful vignettes of genre scenes at the base of the numeral cards-usually lost when packs became double-ended.

How all these variations on the basic idea came about is not fully understood. One plausible theory is that some of them arose from midunderstandings due to language differences, which resulted in something like visual puns.

Alongside the evolution of these traditional designs, in most countries there have also been persistent efforts to publish more fanciful cards, either as artistic essays, or with some purpose other than simple card-playing: for example, instruction, propaganda, or even amusement. Following a French initiative, England in the late 17th and early 18th century produced a range of very idiosyncratic packs of cards of this type.

But other countries, such as Germany and Austria, became the chief 19th-century producers of packs of fanciful cards meant for use in card games in polite society.

Tarot - a diversion

The study of the development of playing-cards has further been bedevilled by overmuch attention to tarot packs. To the best of our knowledge, the first packs of cards in Europe comprised 52 cards in four Italian-type suits each with three court cards (king, knight, and foot-servant), and were used for games of skill involving trick-taking, as well as for gambling games, which were often prohibited. Very soon, the idea of adding extra cards to act as permanent trumps came into being, and the tarot pack was born. At the same time a queen was interpolated between the king and the knight, so that, with the extra 22 non-suited cards, a pack of 78 cards was created. Such packs have continued to be used for their original purpose right through to the present day.

In the course of their long life, many variations have been tried: the pack has been extended to 97 cards for Minchiate by adding more trumps; shortened to 63 cards by dropping low-value numeral cards; converted to using French suit-signs; shortened to 54 and 42 cards by dropping numerals; but always with the object of playing trick-taking games. Many of these variants are still in use for just that purpose.

Cartomancy and the occult

It is the choice of subjects for the trump cards which has been the focus for so much attention by both scholars and occultists. Though playing-card historians still do not have a satisfactory explanation of the sequence of subjects, many of the occultist theories have been discredited. For instance, the tarot pack was known in Europe in the early 15th century, before the arrival of the gypsies. This rules out the proposed connection with Egypt first put forward in 1781, which forms the foundation for much of the later occult speculation. The earliest known use of Tarot packs for fortune telling was in Bologna, around 1750, using an entirely different system of meanings, and the use of ordinary packs of playing-cards for cartomancy does not date from much earlier than this. Unfortunately, some occultists and cartomanciers continue to ignore these facts.

Tarot gets a new look

With the conversion of the tarot pack to the French suit-system, the trump cards, with their no longer understood imagery, were replaced by other sequences of pictures: animals, mythological subjects, genre scenes. The value of each trump card was now indicated by a large numeral (the forerunner of corner-indices), so that the pictures had no function other than decoration. However, a few sets of pictures found favour with card players, and gradually the range of such tarot packs narrowed down.



The playing-card picture-gallery

The use of pictures on tarot trumps was eventually copied in a modern development of the older idea of 'pictured' cards. (Indeed, a couple of tarot packs actually started life as normal packs of cards with pictures instead of pips on the numeral cards.) The success of this idea was dependent on the introduction of corner-indices-an American innovation which was surprisingly late in being introduced in view of much earlier experiments in that field. In America, around the turn of the century it was exploited in order to turn photographs of scenery into souvenir packs intended to promote the joys of rail travel. And such packs were further distinguished by colourful pictorial designs on the backs of the cards-which have lately become collected for their own sake. Many modern packs of cards use a similar format to carry 52 different pictures of all kind of subjects: animals and birds, views, works of art, cartoons, pin-ups, trains, planes, etc.

Artists transform the pack

The 19th century also saw the development of a vast industry in cards which were meant to appeal to the public simply by being attractive-or topical-with courts drawn from literary, historical or contemporary figures. The fashion may have started as an offshoot of the 19th-century phenomenon known nowadays as transformation cards. The chief idea was to take the numeral cards of an ordinary pack and to make designs in which the shapes of the pips were an essential element.
The resulting cards were, of course, totally unusable for play when they had no corner-indices, and indeed the publishers of early packs recommended that the blank backs should be used as visiting cards (a very important item in high society). Nevertheless, almost from the beginning, court cards were also provided so as to complete the pack. In Europe these were drawn from literary sources, though in England a more humorous approach prevailed. It is probable that such ideas helped to propel a tendency for playing-cards to keep up with current fashions and trends. Even the more run-of-the-mill continental cards tended to have elegantly clad and fashionably coiffured ladies instead of crowned queens.

England follows suit-reluctantly

The fashion was very slow to catch on in England. Despite a few experiments, mostly not very attractive, it was only with the use of chromolithography towards the end of the century that artistic packs became viable. But English card-players had a reputation for conservatism anyway-witness their great reluctance to change from single-figure court cards to double-ended ones-and even then the numeral cards were slow to follow suit. The usefulness of corner-indices seems to have been appreciated more quickly, however.


English card-players also clung to the traditional, but frankly ugly, designs of their court cards, which had remained virtually unchanged since before 1700. Prior to that era, we have scanty information about the designs of everyday cards, since few of them have survived. An English educational pack of 'Memory cards' of c.1605 includes copies of elegant court cards made in Rouen, where cards of a particular design were made especially for export to England. Study of these cards goes far to explain peculiar features of later English-made versions. The crudity of these copies was due to inept English block-cutters trying, with home-made products, to compensate for the effect of the 1628 ban on importation of foreign cards. In fact, the accidental stylisation has proved to be a functional factor of stabilising influence in ensuring the durability of these designs. Most modern English-style cards still betray signs of their ancestry.


The Worshipful Company

It was on 22nd October 1628 that Charles I granted the charter to the Company of the Mistery of Makers of Playing Cards of the City of London, and from 1st December that year all future importation of playing cards was forbidden. In return, a duty on playing-cards was demanded, and the subsequent history of attempts to extract that duty makes an unedifying and contradictory story, as any student of such matters knows. The Livery Company still exists, and, despite the almost total cessation of production of playing-cards in Britain, flourishes. In 1994 it achieved its highest ambition in the City of London, when a former Master of the Company, Alderman Christopher Walford, became Lord Mayor. Towards the end of his term of office, he opened an exhibition of playing-cards in the Print Room at Guildhall Library, which houses a collection of historic playing-cards belonging to the Worshipful Company of Makers of Playing Cards, the nucleus of which was donated by the 'Father of the Company' Mr Henry Druitt Phillips, in 1907.

The Guildhall Library has recently been delighted to accept on deposit a second important collection of playing-cards, owned by John Waddington PLC. This acquisition complements the previous collection in many instances in a very useful way, and considerably enhances the range of material available for study.

Oriental playing-cards

This synopsis has dealt mainly with European cards though the Chinese origins have been mentioned briefly. China was, for many decades, rejected as the origin of playing-cards because its traditional cards are so unlike Western ones. The connection with coins, and strings / bamboos / batons, however, cannot be ignored. Other Chinese playing-cards (which they themselves regard as gambling cards) use systems rooted in dominoes and Chinese chess- and Rummy-type games which were not known in Europe until relatively recently.

Indigenous Japanese games rely on principles of 'matching' (involving a highly literary version of Snap) or on games involving cards which ultimately stem from European models -heavily disguised to evade prohibitions on gambling.
In parts of India, games are played with packs of circular cards with eight, ten or more suits, whose designs reflect either the departmental structure of an Indian rajah's court or the incarnations of Vishnu (or other more complex systems), and are played something like Whist with no trumps but with extra complications. Earlier this century, it was claimed that there was a connection between the four-suited European pack and the four-handed game of chess played in India, but this theory has now been discredited in the light of the connection with the Islamic world.





Source: The International Playing Card Society