On this day: May 3

Published On: May 03 2013 12:09:25 AM CDT   Updated On: May 03 2016 01:00:00 AM CDT

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.

OTD May 3 - United-Continental merger
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2010: United and Continental airlines announce that the two companies will merge, creating the world's largest airline. The merger became official the following year, with the new company retaining the United Airlines name.

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