"Sad night,” when the Aztecs attacked Hernán Cortés and his forces in the Aztec capital, Tenochittlán, killing hundreds. Cortés laid siege to the city the following year, precipitating the fall of the Aztec empire and inaugurating three centuries of Spanish rule.
Who: Cortés and Aztecs
What: Violent Aztec uprising
Where: Tenochtitlán
When: June 30, 1520
Why/How: Spanish forced to flee city