On this day: May 3

POSTED: 11:09 PM MDT May 02, 2013    UPDATED: 12:00 AM MDT May 03, 2013 
Sears Tower, Chicago skyline, horizontal

Washington, D.C., is incorporated, Joe DiMaggio makes his major-league debut, the Sears Tower becomes the tallest building in the world, and the first spam email is sent, all on this day.