think it was the greeks, can't find any people who had one before them
Mesa Amphitheatre was created in 1979.
USANA Amphitheatre was created in 2003.
Gibson Amphitheatre was created in 1972.
International Amphitheatre was created in 1934.
International Amphitheatre ended in 1999.
Pacific Amphitheatre was created in 1983.
Bowery Amphitheatre was created in 1833.
Bowery Amphitheatre ended in 1866.
Shoreline Amphitheatre was created in 1986.
Starwood Amphitheatre ended in 2007.
Starwood Amphitheatre was created in 1985.
it was similar, however it was not exactly a typical amphitheatre