
♪ Math, Science, History,
unraveling the mystery ♪
The Big Bang Theory Season 7, Episode 21

♪ Math, Science, History,
unraveling the mystery ♪
The Big Bang Theory Season 7, Episode 20

It's like taking a walk through HISTORY.
Game of Thrones Season 3, Episode 4

♪ Math, Science, History,
unraveling the mystery ♪
The Big Bang Theory Season 12, Episode 4

The tragic HISTORY of slavery in America.
Fun for the whole family.
The Big Bang Theory Season 6, Episode 20