thumbs.pro : worldhistoryfacts: The Gaocheng Observatory, the oldest observatory in China. After its establishment in 1279, astronomers there calculated the length of the year to 365.2425 days 300 years before the Europeans.

published on: 2016-05-06 02:26:53

Scientists Discover a Missing Link between Tau and Memory Loss

kittyinva: Kittyinva: 1927 photo of girls working on a car:

coolartefact: The Archimedes palimpsest, 13th century A.D. [1800x1160]Source:

archaicwonder: Carrigaholt Castle, County Clare, Ireland Carrigaholt

scribe4haxan: Scheherazade and the Sultan (1878) - Alfred

coolartefact: Dagger - 1600-1500 BC - Mycenean The British Museum