July 31, 1970
1970s — decade (1970-1979)
Iranian Revolution — 1978–1979 revolution that overthrew the Iranian monarchy
1970 FIFA World Cup — 9th FIFA World Cup, held in Mexico
Eurovision Song Contest 1970 — 15th edition of the Eurovision Song Contest
Cambodian genocide — genocide of as many as 3,000,000 Cambodians by communist Khmer Rogue in 1975–79
1970 Formula One season — sports season
1970–71 European Cup — 16th season of the UEFA club football tournament
1970 African Cup of Nations — football tournament
1970 Asian Games — sixth edition of the Asian Games
Years of Lead — period of social and political turmoil in Italy