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What is a Leap Year?

CGP Grey Follow
  • Video description
  • 5 years ago
  • 2,425,248 views
  • 26,712 likes
  • 4,303 comments
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Also check out MinutePhysics' video: http://www.youtube.com/watch?v=53glKEPzElA & SciShow: http://www.youtube.com/watch?v=HnDsXhQHrEw
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