Compass, gunpowder, paper making
Napoleon's Grand Army marched into Russia with 600,000 men as an invasion force, only 50,000 returned. The short answer is that Napoleon lost 550,000 men in Russia but the long answer is no one knows since we don't know who ran away and who died or was wounded in Russia.
Answer:
"That period, which ended with Mao’s death in 1976, is a controversial part of China’s history, one that current top officials would rather look past than celebrate. Monday marks the 50th anniversary of that start of the Cultural Revolution and there is no official celebration or recognition from state media."
Answer:
I think the answer is the Egyptians
or Babylonians