George Washington crossed Delaware, in which he surprised and defeated 1,400 Hessians.
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Mikhail Gorbachev resigned from his position as Prime Minister of the Soviet Union.
Cassini orbiter released the Huygens probe, which successfully landed on Saturn's moon Titan.
The James Webb Space Telescope was launched from the Guiana Space Center.
The show trial of Romanian Communist dictator Nicolae Ceaușescu occurred.
Governor William Bradford of Plymouth Colony forbade game playing on Christmas.