On this Date in Minnesota history: July 18

July 18, 1962 – “Harmon Killebrew and Bob Allison each hit a grand slam in the same inning. The Twins beat Cleveland.

"http://www.thehistorypeople.com/data/docs/timeline-part3.pdf

Harmon Killebrew

http://en.wikipedia.org/wiki/File:Harmon_Killebrew_1962.png

Bob Allisonhttp://en.wikipedia.org/wiki/File:Bob_Allison_1959.png