recorded earthquakes.
The Sumerian abacus appeared in 2700 BC, a primitive device which was difficult to use. The Persians used the abacus in 600 BC. The Greek abacus dated to the 5th Century BC. The Chinese dated to the 2nd Century BC
Scientists believe it was in about 3500 BC (about 5500 years ago).
The Chinese Zodiac was created many years ago by the Chinese people in 2637 BC. Therefore because it is 2011 the Chinese Zodiac was invented 3000 years ago today.
1500 BC
would be guesswork at best since the exact dates of more than half of that group are unknown. Thales 624-546 BC Pythagoras 570-495 BC Euclid 465-350 BC Plato 428-348 BC Hypatia 360-425 BC Archimedes 287-212 BC Al-Khwarizmi 780-850 AD Omar Khayyam 1048-1131 AD Rene Descartes 1596-1650 AD Benoit Mandelbrot 1924-2010 AD
early 5th century BC
780 BC
Girlfriend, idek!
200-1400 (BC) is the early early early early roman period back in rome.
Wind chimes are thought to have been invented by the Chinese or the Romans; early examples have been found as early as 3000 BC in southeast Asia. There is no specific inventor credited with their invention, however.
The Chinese
around 100 BC to late 50 BC
The written records go back farther in Egypt than in China, although it is impossible to establish the precise dates for the first organized civilizations. The oldest Chinese dynasty (Xia) may have existed as early as 2200 BC, but written records do not begin until the Shang dynasty, around 1300 BC but perhaps as early as 1700 BC. Egypt has hieroglyphics dated to around 3200 BC.
It is easy to take for granted that early civilizations such as those in Mesopotamia and Egypt knew of the rich pearl banks in the Persian Gulf and the Red Sea, but there is no proof. There have been found, however, mother-of-pearl inlays in the ruins of Bismaya from as early as 4500 BC. The oldest history book in China, which was written the third millennium BC, does mention "strings of not completely round pearls" which is proof that the Chinese did collect pearls many thousands of years ago. The Chinese are also credited with the first foray into pearl cultivation. The Chinese produced blister pearls, often in the shape of Buddha, as early as the first century BC and is known to have commercially produced them in the 12th century.
Babylonian and Hittite
Confucius lived from 551 BC to 479 BC He was a famous Chinese teacher.
the Chinese