Tashkent Declaration — peace agreement between India and Pakistan advocated by USSR

1966 battle in the Vietnam War

Japanese civil conflict over the construction of Narita Airport (1966-present)

1966 Asian Games — fifth edition of the Asian Games

World Chess Championship 1966 — Game

1966 FIFA World Cup qualification — international football competition

Civil unrest in 1966/7 in West Hollywood, California, USA

1966–67 European Cup — 12th season of the UEFA club football tournament

1966 Formula One season — sports season

1966 European Athletics Championships — 1966 edition of the European Athletics Championships

Pleasure cruiser sinking off the Cornish coast in 1966