
of 17th CENTURY philosopher
René Descartes.
The Big Bang Theory Season 12, Episode 10

Bosoms would not have said, "Howdy,"
in the 15th CENTURY.
The Big Bang Theory Season 2, Episode 2

...was a third CENTURY Roman priest
who was stoned and beheaded...
The Big Bang Theory Season 3, Episode 15

Ah, the vintners say this might be the best
year for red grapes in half a CENTURY.
Game of Thrones Season 5, Episode 9

Thailand has had the fork
since the latter half of the 19th CENTURY.
The Big Bang Theory Season 1, Episode 2