On this day: November 21

POSTED: 12:35 AM PST Nov 20, 2012    UPDATED: 11:00 PM PST Nov 20, 2012 
Sylvester Stallone in Rocky

The pilgrims sign the Mayflower Compact, Thomas Edison announces the phonograph, "Frankenstein" and "Rocky" premiere 45 years apart, and Tweety Bird makes his debut, all on this day.