1973 The ITT Building in New York City is bombed in protest at ITT's alleged involvement in the September 11 1973 coup d'état in Chile.
1987 President Ronald Reagan proclaims September 11, 1987 as 9-1-1 Emergency Number Day.
1989 Hungary: the last communist government opens the Iron curtain and causes the exodus of thousands of Eastern Germans to West Germany via Hungary (September 11).