On this day: December 4

Published On: Dec 03 2012 06:14:12 PM CST   Updated On: Dec 04 2016 01:00:00 AM CST

The U.S. Senate approves America's participation in the United Nations, Led Zeppelin disbands, and Pan Am collapses, all on this day.

OTD December 4 - space shuttle Unity Module
2 / 27

1998: The Unity Module, the second module of the international space station, is launched on the space shuttle Endeavour on the first shuttle mission dedicated to assembly of the station. The 15-foot-by-18-foot Unity, the first U.S.-built component of the space station, joined the already orbiting Zarya module in space. The two modules were connected two days later.

Upload Photos / Videos