The Castro in San Francisco City and County, California — The American West (Pacific Coastal)

Alan Turing

(1912-1954)

— Rainbow Honor Walk —

Alan Turing Marker image. Click for full size.

Photographed By Andrew Ruppenstein, September 9, 2016

1. Alan Turing Marker

Inscription.
British cryptanalyst, logician, philosopher and mathematician widely recognized as a pioneer of artificial intelligence and the father of computer science Alan Turing

Erected 2014 by Rainbow Honor Walk.

Topics and series. This historical marker is listed in these topic lists: Communications • Science & Medicine. In addition, it is included in the Rainbow Honor Walk series list.

Location. 37° 45.628′ N, 122° 26.09′ W. Marker is in San Francisco, California, in San Francisco City and County. It is in The Castro. Marker can be reached from Castro Street south of 18th Street. Touch for map. Marker is at or near this postal address: 517 Castro Street, San Francisco CA 94114, United States of America. Touch for directions.

Other nearby markers. At least 8 other markers are within walking distance of this marker. Allen Ginsberg (a few steps from this marker); Sylvester (within shouting distance of this marker); Keith Haring (within shouting distance of this marker); Leonard Matlovich (within shouting distance of this marker); Gertrude Stein (within shouting distance of this marker); Harry Hay (within shouting distance of this marker); Federico Garcia Lorca (within

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shouting distance of this marker); Tom Waddell (within shouting distance of this marker). Touch for a list and map of all markers in San Francisco.

Also see . . .
1. Alan Turing: The Enigma. Biographical website for Turing maintained by biographer Andrew Hodges. (Submitted on September 24, 2016.)

2. Alan Turing. Biography website entry:
Alan Turing was born on June 23, 1912, in London. In his seminal 1936 paper, he proved that there cannot exist any universal algorithmic method of determining truth in mathematics, and that mathematics will always contain undecidable propositions. That paper also introduced the "Turing machine. His papers on the subject are widely acknowledged as the foundation of research in artificial intelligence.... (Submitted on September 24, 2016.)

3. Alan Turing's homosexual court files go on display. BBC News website entry (Submitted on September 24, 2016.)

Additional keywords. LGBT LGBTQ

Alan Turing Marker - Wide View image. Click for full size.

Photographed By Andrew Ruppenstein, September 9, 2016

2. Alan Turing Marker - Wide View

Credits. This page was last revised on February 8, 2023. It was originally submitted on September 24, 2016, by Andrew Ruppenstein of Lamorinda, California. This page has been viewed 498 times since then and 35 times this year. Photos: 1, 2. submitted on September 24, 2016, by Andrew Ruppenstein of Lamorinda, California.