Today in History: October 21

Credit: MGN Online

Today in History: October 21

October 21, 2013 Updated Oct 21, 2013 at 10:19 AM CDT

Take a look at the video below to find out important happenings from this day in history.

Included: Thomas Edison perfects workable electric light; Anthrax scare claims first of two U.S. postal workers in Washington, DC; Britain wins Battle of Trafalgar; Actress and author Carrie Fisher born.