On this day: April 9

Published On: Apr 06 2013 12:22:11 AM CDT   Updated On: Apr 09 2016 01:00:00 AM CDT

General Lee surrenders at Appomattox Court House, NASA picks its first seven astronauts, the Houston Astrodome opens, and Iraqis tear down Saddam Hussein's statue in a liberated Baghdad, all on this day.

OTD April 9 - Operation Weserubung
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German Federal Archive/Wikimedia Commons

1940: Early in World War II, Germany invades Denmark and Norway in Operation Weserübung. The Germans defended the move as preemptive effort to protect the countries' neutrality from a Franco-British attack and occupation.

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