I believe the seventies ended...
2
votes
with the release of Elvis Costello’s first album (1977)
when Roller Boogie failed at the box office (1979)
on January 1, 1980
the day Ronald Reagan was inaugurated (January 20, 1981)
the day of the first NYT AIDS-related story(August 29, 1981)
when they stopped manufacturing Quaaludes (1993)