San Diego History

Events

Treaty of Guadalupe Hidalgo signed

1848

Treaty sets the boundary between U.S. and Mexico and San Diego officially becomes an American city.

Alonzo Erastus Horton arrives.

1867

On May 10, Horton acquires 800 acres of land, (today's downtown San Diego), for $265.

First post office established.

1869

Local Gold Rush

1870

Prospector Fred Coleman discovers placer gold near present day Julian, setting off local rush

Fire sweeps Old Town

1872

San Diego's first public transit system

1886

The San Diego Street Car Co., founded. First streetcars began operating over 2-mile track on Broadway.

Army establishes Fort Rosecrans

1899

Remains an Army base until transfer to the Navy in 1959.

Navy establishes a base on North Island

1912

Broadway Pier constructed with a $1.7 million bond issued by the City.

1913

The Panama California Exposition opens.

1915

Balboa Stadium opens

1915

A capacity of 23,000, making it the largest municipal stadium in the nation at the time.

Unusually heavy rains cause severe flooding in San Diego

1916

Washing out all but two of the City's 112 bridges and breaking the Lower Otay Dam

U.S. Navy makes San Diego Bay home base for the Pacific Fleet. San Diego & Arizona Railroad completed after 13 years of labor and $17 million, providing San Diego a direct link with the East.

1919

Voters approved $2 million to begin development of Mission Bay

1945

San Diego Aqueduct open, bringing Colorado River water to San Diego.

1947

City Administration Building opens downtown at Community Concourse.

1964

San Diego Sports Arena completed.

1966

$27 million San Diego Stadium opens in Mission Valley.

1967

San Diego-Coronado Bay Bridge opens

1969

Replacing ferry service across San Diego Bay.

The San Diego Trolley, first line in the City's new light rail transit system, dedicated. It begins service in 1981.

1970

City of San Diego population reaches 875,538

The San Diego Supercomputer Center opens at the University of California, San Diego

1986

Providing the national research community with access to highest performance computers.

San Diego hosts its first Super Bowl in San Diego Jack Murphy Stadium.

1988

San Diego Convention Center opens.

1989

Naval Training Center on Point Loma closes to all active military use as part of federal Base Closure and Realignment Act

1997

Former base to be redeveloped for public and private uses.

Padres win National League Pennant; second World Series played in San Diego. Super Bowl also held in (renamed) Qualcomm Stadium

1998

xpansion of Convention Center opens, doubling the size of the facility.

2001