CHP-003 The Four Great Inventions

Published: June 24, 2010, 1:18 a.m.

Today we look at the Four Great Inventions, the 四大发明, that Lord Francis Bacon hailed as having done more than anything else to transform completely the modern world and mark it off from antiquity and the Middle Ages.  The four great inventions were the compass, gunpowder, paper and printing. Terms used in continue reading >>