In 1963, Mother's Day fell on Sunday May 12 (not in America or UK).
My Favorite Martian - 1963 Once Upon a Martian Mother's Day 2-28 is rated/received certificates of: Australia:G
My Favorite Martian - 1963 Once Upon a Martian Mother's Day 2-28 was released on: USA: 11 April 1965
His Mother Marveled - 1963 TV was released on: USA: 1963
Charlie's Mother-in-Law - 1963 was released on: USA: 16 April 1963
The cast of His Mother Marveled - 1963 includes: Marvin Miller as Narrator
In 1963, May Day fell on a Wednesday
Day in Court - 1963 was released on: USA: 19 December 1963
The New Casper Cartoon Show - 1963 Mother Goose Land was released on: USA: 1963
The Mother Hunt was created on 1963-07-18.
14 may 1963 was a good day.
1907*, 1912, 1918, 1929, 1935, 1940, 1946, 1957, 1963, 1968, 1974, 1985, 1991, 1996 & 2002* Many consider May 12, 1907 to be the first Mother's Day, but I doubt it was called Mother's Day before 1908.