General fact: 200 is the approximate number of volcanoes in Japan, which is home to 10% of the active volcanoes in the world.
Mathematical fact: 200 is the smallest number which can not be made prime by changing one of its digits.
Trivia: 200 is degrees in a human"s field of vision (approximately).
Historical date: July 18th is the day in 1857 that Louis Faidherbe, French governor of Senegal, arrives to relieve French forces at Kayes, effectively ending El Hajj Umar Tall's war against the French.