Which happened earlier: The Simpsons debuts or Teflon introduced?

Question 1

Which happened earlier?

A The Simpsons debuts

B Teflon introduced ✓ Earlier

Teflon introduced (1 January 1946) came before The Simpsons debuts (17 December 1989)

Question 2

Which happened earlier?

A Cats musical premieres

B Cambodia renamed Democratic Kampuchea ✓ Earlier

Cambodia renamed Democratic Kampuchea (5 January 1976) came before Cats musical premieres (11 May 1981)

Question 3

Which happened earlier?

A Guggenheim Museum Bilbao opens

B Jurassic Park premieres ✓ Earlier

Jurassic Park premieres (11 June 1993) came before Guggenheim Museum Bilbao opens (18 October 1997)

Earlier #204