
December 25th, 1642, Julian CALENDAR,
Sir Isaac Newton is born.
The Big Bang Theory Season 3, Episode 11

My phone doesn't
have a CALENDAR.
The Big Bang Theory Season 7, Episode 18

Sara, pull up my CALENDAR.
The Big Bang Theory Season 10, Episode 22

Really? You're changing
the Sheldonian CALENDAR?
The Big Bang Theory Season 4, Episode 2

Oh. Uh, I've been busy.
Well, clear your social CALENDAR.
Breaking Bad Season 2, Episode 9