Third Amendment of the Constitution of Ireland happened in 1972.
No on April 7th 2012
March 9th 1984 was a Friday.
Saturday.
Ninth Avenue derailment happened in 1905.
Ninth Battle of the Isonzo happened in 1916-11.
Thursday
It was a Thursday.
Sir Michael Havers (March 10, 1923 - April 1, 1992) succeeded Cyril Black as the ninth Member of Parliament for Wimbledon, serving between 1970 and 1987, including the whole of 1984.
9th April 1953 was a Thursday
April 9th 1987 was a Thursday.
April 9th 1974 was a Tuesday.