Every four years, we get an extra day in February. Who decided this, and what's the point? Why Do We Have Days Of The Week? ►►►► https://www.youtube.com/watch?v=Kw6FW... Support Life Noggin on Patreon: https://www.patreon.com/LifeNogginStu... Follow Us! https://twitter.com/LifeNoggin https://facebook.com/LifeNoggin Click here to see more videos: https://www.youtube.com/user/lifenoggin Life Noggin is a weekly animated educational series. Whether it's science, pop culture, history or art, we explore it all and have a ton of fun doing it. Life Noggin Team: Animation by Steven Lawson Director/Voice: http://lifenogg.in/patgraziosi Executive Producer: http://lifenogg.in/IanDokie Director of Marketing: http://lifenogg.in/JaredOban Writer: http://lifenogg.in/KayleeYuhas Sources: http://www.slate.com/blogs/bad_astron... http://www.public.asu.edu/~mjwhite/Si... http://www.astronomynotes.com/nakedey... http://blogs.discovermagazine.com/bad...