| Year |
Event |
| 140-190 million years ago |
Dinosaurs roam the earth. |
| Less than 100,000 years ago |
Homo sapiens begin using intelligence to further their goals |
| More than 5,000 years ago |
The abacus, which resembles the arithmetic unit of a modern computer,
is developed in the Orient. |
| 3000-700 B.C. |
Water clocks are built in China in 3000 B.C., in Egypt c. 1500 B.C. and
in Assyria 700 B.C. |
| 2500 B.C. |
Egyptians invent the idea of thinking machines: citizens turn for
advice to oracles, which are statues with priests hidden inside. |
| b. 469 B.C. |
Socrates, the mentor of Plato, is the first Western thinker to assert
that mental activities occur in the unconscious. |
| 469-322 B.C. |
Socrates, Plato, and Aristotle establish the essentially rationalistic
philosophy of Western culture. |
| 427 B.C. |
In the Phaedo and later works Plato expresses ideas, several millennia
before the advent of the computer, that are relevant to modern dilemmas regarding human
thought and its relation to the mechanics of the machine. |
| c. 420 B.C. |
Archytas of Tarentum, a friend of Plato, constructs a wooden pigeon
whose movements are controlled by a jet of steam or compressed air. |
| b. 415 B.C. |
Theaetetus, a member of Plato's Academy, creates solid geometry. |
| 387 B.C. |
Plato founds the Academy for the pursuit of science and philosophy in a
grove on the outskirts of Athens. It results in the fertile development of mathematical
theory. |
| 343-334 B.C. |
Aristotle carries on the Platonic tradition by becoming the teacher of
Alexander the Great in 343 B.C. and founding the Lyceum, also known as the peripatetic
school of philosophers, in 334 B.C. |
| 293 B.C. |
Euclid, also a member of Plato's Academy, is the expositor of plane
geometry. He writes the Elements, a basic mathematics textbook for the next 2,000 years. |
| c. 200 B.C. |
In China artisans develop elaborate automata, including an entire
mechanical orchestra. |
| c. 200 B.C. |
An Egyptian engineer improves the water clock, making it the most
accurate timekeeping device for nearly 2,000 years. |
| A.D. 529 |
Plato's Academy and Aristotle's Lyceum are closed by the emperor
Justinian. |
| c. 600 |
The earliest works mentioning the game of chess appear in India. |
| 725 |
A Chinese engineer and a Buddhist monk build the first true mechanical
clock, a water-driven device with an escapement that causes the clock to tick. |
| c. 1310 |
The first mechanical clocks appear in Europe, apparently stemming from
stories about the existence of mechanical clocks in China. |
| 1494 |
Leonardo da Vinci draws a clock with a pendulum. |
| 1530 |
The spinning wheel is in use in Europe. |
| 1540, 1772 |
The technology of clock and watch making results in the production of
more elaborate automata during the European Renaissance. Gianello Toriano's
mandolin-playing lady (1540) and P. Jacquet-Droz's child (1772) are famous examples. |
| 1543 |
Nicolaus Copernicus publishes De Revolutionibus, in which he states
that the earth and the other planets revolve around the sun, thereby changing humankind's
relationship with God. |
17th-18th
centuries |
This is the age of the Enlightenment, a philosophical movement to
restore the supremacy of human reason, knowledge, and freedom, with parallel developments
in science and theology. It had its roots in the European Renaissance and the Greek
philosophy of twenty centuries earlier and constitutes the first systematic
reconsideration of the nature of human thought and knowledge since the Platonists. |
| 1617 |
John Napier invents Napier's Bones, of significance to the future
development of calculating engines. |
| 1637 |
Rene Descartes, who formulated the theory of optical refraction and
developed the principles of modern analytic geometry, pushes rational skepticism to its
limits in his most comprehensive work, Discours de la Methode. His conclusion was, "I
think, therefore I am." |
| 1642 |
Blaise Pascal perfects the Pascaline, a machine that can add and
subtract. It is the world's first automatic calculating machine. |
| c. 1650 |
Otto von Guericke perfects the air pump and uses it to produce vacuums. |
| 1670 |
Pensees, by Blaise Pascal, is published posthumously. |
| 1687 |
Isaac Newton's Philosophiae Naturalis Principia Mathematica, known as
Principia, established his three laws of motion and the law of universal gravitation. |
| 1694 |
Gottfried Wilhelm Liebniz, an inventor of calculus, perfects the
Liebniz Computer, a machine that multiplies by performing repetitive additions, an
algorithm still used in modern computers. |
| 1719 |
What appears to be the first factory, an English silk-thread mill,
employs 300 workers, mostly women and children. |
| 1726 |
Jonathan Swift describes a machine that will automatically write books
in Gulliver's Travels. |
| 1733 |
John Kay paves the way for much faster weaving by patenting his New
Engine for Opening and Dressing Wool, laster known as the flying shuttle. |
| 1760 |
Benjamin Franklin, in Philadelphia, erects lightning rods after having
found, through his famous kite experiment in 1752, that lightning is a form of
electricity. |
| c. 1760 |
Life expectancy at the beginning of the Industrial Revolution is about
37 years in North America and northwestern Europe. |
| 1764 |
James Hargreaves invents the spinning jenny, which is able to spin
eight threads at once. |
| 1769 |
Richard Arkwright, the founder of the modern factory system, patents a
hydraulic spinning machine that is too large and expensive to use in family dwellings. He
builds a factory for his machine in 1781, thereby paving the way for many of the economic
and social changes that will characterize the Industrial Revolution. |
| 1781 |
Immanuel Kant publishes his Critique of Pure Reason, which expresses
the philosophy of the Enlightenment while deemphasizing the role of metaphysics. He sets
the stage for the emergence of twentieth-century rationalism. |
| 1792 |
Edmund Cartwright devises the first machine to comb wool to feed the
new mechanized spinning machines. |
| 1792 |
William Murdock invents coal-gas lighting. The streets of London will
be illuminated by 1802. |
| 1800 |
All aspects of the production of cloth are automated. |
| 1805 |
Joseph-Marie Jacquard devises a method for automating weaving with a
series of punched cards. This invention will be used many years later in the development
of early computers. |
| 1811 |
Ned Ludd founds the Luddite movement in Nottingham over the issue of
jobs versus automation. |
| 1821 |
Charles Babbage is awarded the first gold medal by the British
Astronomical Society for his paper "Observations on the Application of Machinery to
the Computation of Mathematical Tables." |
| 1821 |
Michael Farraday, widely recognized as the father of electricity,
reports his discovery of electromagnetic rotation and builds the first two motors powered
by electricity. |
| 1822 |
Charles Babbage develops the Difference Engine, but its technical
complexities exhaust his financial resources and organizational skills. He eventually
abandons it to concentrate his efforts on a general-purpose computer. |
| 1829 |
The first electromagnetically driven clock is constructed. |
| 1832 |
Charles Babbage develops the principle of the Analytical Engine, which
is the worlds's first computer and can be programmed to solve a wide variety of logical
and computational problems. |
| 1835 |
Joseph Henry invents the electrical relay, a means of transmitting
electrical impulses over long distances that serves as the basis for the telegraph. |
| 1837 |
Samuel Finley Breese Morse patents his more practical version of the
telegraph, which sends letters in codes consisting of dots and dashes. |
| 1843 |
Ada Lovelace, Lord Byron's only legitimate child and the world's first
computer programmer, publishes her own notes with her translation of L.P. Menabrae's paper
on Babbage's Analytical Machine. |
| 1843 |
Søren Kierkegaard, who will greatly influence the ideas of modern
existentialists, publishes Either-Or, his major work, followed by other writings that
denounce the state-organized church on grounds that religion is a matter for the
individual soul. |
| 1846 |
Alexander Bain uses punched paper tape to send telegraphed messages,
greatly improving the speed of transmission. |
| 1847 |
George Boole published his first ideas on symbolic logic. He will
develop these ideas into his theory of binary logic and arithmetic that is still the basis
for modern computation. |
| 1851 |
An exhibition in London promotes the application of science to
technology and focuses world attention on British progress in both fields. |
| 1854 |
An electric telegraph is installed between Paris and London. |
| 1855 |
Heinrich Geissler Igeshieb develops his mercury pump, used to produce
the first good vacuum tubes. These will lead to the development of cathode rays and
eventually to the discovery of the electron. |
| 1855 |
William Thomson develops a successful theory of transmission of
electrical signals through submarine cables. |
| 1859 |
Charles Darwin, in The Origin of Species, explains his principle of
natural selection and its influence on the evolution of various species. |
| 1861 |
San Francisco and New York are connected by a telegraph line. |
| 1864 |
Ducos de Harron develops a primitive motion-picture device in France. |
| 1866 |
Cyrus West Field lays a telegraph cable across the Atlantic Ocean. |
| 1870 |
GNP on a per capita basis and in constant 1958 dollars is $530. Twelve
million Americans, or 31 percent of the population, have jobs, and only 2 percent of
adults have high school diplomas. |
| 1871 |
Charles Babbage dies, leaving more than 400 square feet of drawings for
his Analytic Engine. |
| 1873 |
Melvil Dewey develops for the Amherst College Library a plan for 999
categories of materials that becomes known as the Dewey Decimal System. It is refined over
time to provide a virtually unlimited number of subdivisions. |
| 1876 |
Alexander Graham Bell's telephone receives U.S. Patent 174,465, the
most lucrative patent ever granted. |
| 1879 |
G. Frege, one of the founders of modern symbolic language, proposes a
notational system for mechanical reasoning. This work is a forerunner to the predicate
calculus, which will be used for knowledge representation in artificial intelligence. |
| 1879 |
Thomas Alva Edison invents the first incandescent light bulb that can
burn for a significant length of time. |
| 1880 |
Frederich Nietzsche writes Morgenrote and later works opposing
romanticism and holding up art, philosophy and religion as illusions. These ideas will
strongly influence modern existentialism. |
| 1882 |
Thomas Alva Edison's design for New York City's Pearl Street station on
lower Broadway brings lighting to the United States. |
| 1885 |
Boston is connected to New York by telephone. |
| 1886 |
Alexander Graham Bell, with a modified version of Thomas Alva Edison's
phonograph, uses wax discs for recording sound. |
| 1887 |
The first gasoline-engine automobile is sold in Germany. |
| 1888 |
William S. Burroughs patents an adding machine. This machine is
modified, four years later to include subtraction and printing. It is the world's first
dependable key-driven calculator and will soon gain widespread acceptance. |
| 1888 |
Heinrich Hertz experiments with the transmission of what are now known
as radio waves. |
| 1888 |
The first commercial roll-film camera is introduced. |
| 1890 |
Herman Hollerith, incorporating ideas from Jacquard's loom and
Babbage's Analytical Engine, patents an electromechanical information machine that uses
punched cards. It wins the 1890 U.S. Census competition, with the result that electricity
is used for the first time in a major data-processing project. |
| 1894 |
Guglielmo Marconi builds his first radio equipment, which rings a bell
from 30 feet away. |
| 1894 |
Niagara Falls is harnessed for electricity. |
| 1896 |
A sound film is first shown before a paying audience in Berlin. |
| 1896 |
Herman Hollerith forms the Tabulating Machine Company, which will
become IBM. |
| 1897 |
Joseph John Thomson, with better vacuum pumps than previously
available, discovers the electron, the first known particle smaller than an atom. |
| 1897 |
Alexander Popov, a Russian, uses an antenna to transmit radio waves,
and Guglielmo Marconi, an Italian, receives the first patent ever granted for radio.
Marconi helps organize a company to market his system. |
| 1899 |
The first recording of sound occurs magnetically on wire and on a thin
metal strip. |
| 1899 |
David Hilbert consolidates the accomplishments of nineteenth-century
mathematics with such publications as The Foundations of Geometry. |