On this day: September 24

POSTED: 04:39 AM CDT Sep 23, 2012    UPDATED: 01:00 AM CDT Sep 24, 2013 
Devils Tower National Monument, Wyoming

America's first National Monument is declared, the world's first nuclear-powered aircraft carrier is launched, we say goodbye to Dr. Seuss, and Nirvana hits it big with "Nevermind," all on this day.