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

Corn dogs didn't come into existence
till the first half of the 20th CENTURY.
The Big Bang Theory Season 2, Episode 2

Should I read you some bawdy
19th CENTURY limericks?
The Big Bang Theory Season 11, Episode 11

Fine. How about one of the most beguiling
and influential couples of the 20th CENTURY?
The Big Bang Theory Season 6, Episode 5

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