#e <t>phys disc<n>magnetism & static electricity<d>700<c>Greece<info>attraction of magnetite to iron, and charging of amber
// 6th century B.C.
#p <nat>Greek<o>philosopher<o>mathematician<n>Pythagoras<b>567(1)<d>474(1)<c>Magna Graecia<info>Pythagoras, an Ionian, founded a philosophical and religious school in Croton.
#p <nat>Greek<o>physician<n>Hippocrates<b>460(2)<d>365(5)<c>Cos<info>Hippocrates is called the "father of medicine."
#p <nat>Greek<o>philosopher<n>Plato<b>427<d>347<c>Athens<mov>388<c>Italy<c>Sicily<mov>387<c>Athens<mov>367<c>Syracuse<mov>366<c>Athens<mov>361<c>Syracuse<mov>360<c>Athens<info>In 387 B.C., he founded the Academy in Athens.
#e <t>period<n>Golden Age of Greece<d>500<e>320<c>Greece
The largest building atop the Athenian Acropolis is the Parthenon, a temple dedicated to Athena Parthenos (Athena the Warrior Maiden). It is a Doric building, made entirely of white pentelic marble and surrounded by freestanding columns. The Parthenon later served in succession as a Byzantine church, a Roman Catholic church, a Turkish harem, and a Turkish powder magazine. In A.D. 1687, a direct hit by Venetian artillery caused the powder in the Parthenon to explode, scattering debris across the Acropolis. In 1922-23 the Greek archaeologist Nicolas Balanos collected the remaining fragments of the temple and restored a number of columns and parts of the entablature that they carried.<ref>Grolier
#e <t>pub<t>phys<au>Euclid<tit>Catoptrics<info>states the law of reflection<d>300(10)
#p <nat>Greek<o>astronomer<n>Aristarchus<c>Samos<b>310(10)<d>230<info>first argued that earth revolves around sun
#e <t>astro theory<d>260<c>Samos<n>heliocentric theory<info>Aristarchus pointed out, in 260 B.C., that the motions of the planets, sun, moon and stars could be accounted for if it were assumed that all the planets, including the Earth, orbited about the sun.
#e <t>use<n>carrier pigeons<c>Greece<d>400
// 3rd century B.C.
#p <nat>Greek<o>astronomer<n>Eratosthenes<b>276(2)<d>197<c>Alexandria<info>Eratosthenes devised a prime number sieve.
#p <nat>Greek<o>astronomer<n>Hipparchus<c>Rhodes<b>190<d>120<info>His estimates of the moon's size and distance relative to Earth were remarkably accurate for his time.
#e <t>astro theory<d>150(20)<au>Hipparchus<n>epicyclic theory<info>Hipparchus developed the system of epicycles describing planetary motion, which helped preserve the geocentric model of the universe.
#e <t>inv<d>150<au>Hipparchus<n>trigonometry
#e <t>obs<d>130<au>Hipparchus<n>precession of equinoxes<info>Hipparchus discovered the precession of the equinoxes.
#p <nat>Greek<o>astronomer<n>Ptolemy Claudius<aka>Claudius Ptolemaeus<sur>Ptolemy<b>100(10)<d>170(10)<c>Alexandria<info>Ptolemy was an astronomer who was active in Alexandria between A.D. 127 and 141. He put together his own ideas, those of Aristotle, and Hipparchus' system of epicycles and eccentric circles, to formulate the geocentric theory.