• 230
    watchers
  • 307
    plays
  • 52
    collected

CGP Grey: Season 2012

2012x07 What is a Leap Year?

  • 2012-02-28T18:00:00Z on YouTube
  • 10m
  • United States
  • English
  • Animation, Documentary
Why do some years have an extra leap day and what is it for?
Private Notes
Add
Private Notes
Check In
Add to history
Add to collection
Add to list
Add comment
Loading...