Just like a presidential election, Leap day happens every four years, reminding us of the significance of the number 29.

It may not be as famous as 42 (the answer to the question of life, the universe and everything) or 23 (at least according to Discordians or Jim Carrey and Joel Schumacher), but 29 certainly is worthy of reflection at least 25 times a century.

In honor of this special number, we’ve put together a short quiz about it. Answer the questions below and let us know in the comments if you have any favorite 29s.