Chicago (Zbigniew Bzdak / July 1, 2011)

1956: WTTW is first U.S. station to televise college courses for credit.

1956: Abraham Lincoln statue erected in Lincoln Square.

1956: First baby chick is hatched at Museum of Science and Industry.

1957: Old Town School of Folk Music founded.

1958: Our Lady of the Angels school fire kills 95.

1959: The Second City improv group opens its Wells Street theater.

1960: Northwest Expressway opens (renamed Kennedy Expressway in 1963).

1960: Summerdale police scandal — cops linked to burglary ring.

1961: Dan Ryan Expressway opens.

1961: DuSable Museum of African American History founded.

1962: Robert Taylor Homes public housing development opens.

1963: Northwest Expressway renamed for slain President John Kennedy.

1964: Completion of Southwest Expressway (soon renamed Stevenson Expressway).

1965: University of Illinois' Chicago Circle Campus opens.

1966: Martin Luther King Jr. and family move temporarily into West Side apartment.

1966: Richard Speck murders eight student nurses on Far South Side.

1967: Fire destroys McCormick Place convention center.

1967: Chicago's biggest snowstorm in recorded history — 23 inches.

1967: Picasso sculpture installed in Daley Plaza.

1968: Riots rock the city after Martin Luther King Jr.'s assassination in April and during the Democratic National Convention in August.