On this day: November 1

POSTED: 10:34 PM PDT October 31, 2012    UPDATED: 11:00 PM PDT October 31, 2013 
Hydrogen bomb test, 1952 Ivy Mike

The Sistine Chapel's ceiling is unveiled, the National Weather Service makes its first forecast, the U.S. explodes its first hydrogen bomb, and Honda opens its first U.S. factory, all on this day.