175 years of memorable, horrible, humorous and remarkable events that shaped Chicago
Chicago (Zbigniew Bzdak / July 1, 2011)
1942: The Atomic Age begins at the University of Chicago with first controlled nuclear chain reaction.
1943: Deep-dish pizza mecca Pizzeria Uno opens.
1943: All-American Girls Baseball League founded by Cubs owner P.K. Wrigley.
1944: Germany's U-505 submarine captured — later to become major exhibit at Museum of Science and Industry.
1945: Cubs' last trip to World Series, where they lost to Detroit.
1945: Chicago Transit Authority is established.
1945: Ebony magazine launched.
1946: University of Illinois starts holding classes at Navy Pier.
1947: First parking meters installed in Chicago.
1948: Launch of Chicago Sun-Times and WGN-TV.
1949: Municipal Airport renamed Midway; Orchard Field renamed O'Hare.
1950: Chicago population peaks at 3,620,962.
1950: Chess Records founded.
1951: Edens Expressway (first in Chicago) opens.
1952: Chicago American Giants, Negro Leagues team, disbands.
1953: First issue of Playboy magazine is produced in Hugh Hefner's Hyde Park apartment.
1954: Lyric Opera founded.
1955: Richard J. Daley elected mayor for the first time.
1955: Congress Expressway opens (later renamed Eisenhower Expressway).