Cheap tacos for members as Jack in the Box kicks off its 75th anniversary

Jack in the Box will celebrate its 75th anniversary throughout 2026, beginning Tuesday, Jan. 6.

The San Diego-based fast food chain was founded by entrepreneur Robert Oscar Peterson, who opened its first location on Feb. 21, 1951. It was at  6270 El Cajon Blvd., near San Diego State University.

The Valley Relics Musuem in Van Nuys has an original Jack In The Box drive-thru speaker. (2018 photo by Sarah Reingewirtz, Pasadena Star-News/SCNG) 

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