In 1518, a dancing plague struck Strasbourg, causing people to dance uncontrollably for days. The phenomenon remains a mystery to this day.
The Tanganyika laughter epidemic in 1962 saw uncontrollable laughter spread through a school, affecting over 1,000 people in the region.
The Great Emu War of 1932 saw Australian soldiers face off against emus in a futile attempt to curb their population. The emus won.
The London Beer Flood of 1814 occurred when a brewery tank ruptured, releasing a wave of beer that flooded the streets and killed eight people.
The Dancing Plague of 1374 in Aachen, Germany, saw people dance until they collapsed from exhaustion, with some even dancing themselves to death.
The Tunguska event in 1908 involved a massive explosion in Siberia that flattened over 770 square miles of forest, but its cause remains a mystery.