Japan Unit 731 (may 20, 1935 – may 20, 1945)
Description:
Unit 731 was a group created by the Japanese during WW2 to develop chemical and biological weapons to use against the enemies.One Example is development of "Plague bombs" which were in turn dropped over South Chinese cities.
Added to timeline:
Date:
may 20, 1935
may 20, 1945
~ 10 years