776 B.C. was the first recorded but apparently 500 years old at that point.
Modern Era started 1896 (Athens) but 1928 was the real beginning.
1900: Paris, France
1904: St. Louis, USA
1908: London, England
1912: Stockholm, Sweden
1916: Cancelled due to WWI
1920: Antwerp, Belgium
1924: Paris, France (First Successful Olympics)
1928: Amsterdam, Netherlands
1932: Los Angeles, U.S.A.
1936: Berlin, Germany
1940: Cancelled due to WWII (originally scheduled for Tokyo, Japan, Then moved to Helsinki, Finland, then cancelled)
1944: Cancelled due to WWII (Originally Scheduled for London, England)
1948: London, England
1952:
1956:
1960:
1964:
1968:
1972:
1976:
1980: Summer Moscow, Winter is Lake Placid, NY
1984 Winter: Sarajevo; Summer: Los Angeles
1988: Calgary
1992: Albertville, France
~1994 1st Winter: Lillehammer, Norway
1996 Summer: Atlanta
1998 Winter: Nagano, Japan
2000 Summer: Sydney
2002 Winter: Salt Lake
2004 Summer: Athens, Greece
2006 Winter: Turin, Italy
2008 Summer: Beijing, China
2010 Winter: Vancouver, Canada
2012 Summer: London, England
2014 Winter: Sochi, Russia
2016 Summer: Rio de Janiero, Brazil
2018 Winter: PyeongChang, South Korea
2020 Summer: Tokyo, Japan: Delayed until 2021
2022 Winter: Beijing, China
2024 Summer: Paris, France
2026 Winter: Milan, Italy
2028 Summer: Los Angeles, United States