Historical clue formulations

• Only Hispanic performer with an Emmy, Grammy, Oscar and Tony — 2014-10-17
• Star born on 12/11/1931 — 2006-12-11
• "West Side Story" Oscar winner — 2001-11-09
• She played Anita in "West Side Story" — 1999-12-17
• Onetime winner of all the awards in this puzzle's theme — 1998-09-15
• Oscar, Grammy, Tony and Emmy winner — 1997-10-23
• Oscar, Tony, Grammy and Emmy winner — 1994-03-11