How does paper money get introduced? Who has to lose their head to do so? And what does Marco Polo have to do with anything??? (--More below) Support us on Patreon! http://bit.ly/EHPatreon Grab your Extra Credits gear at the store! http://bit.ly/ExtraStore Subscribe for new episodes every Saturday! http://bit.ly/SubToEC Play games with us on Extra Play! http://bit.ly/WatchEXP Talk to us on Twitter (@ExtraCreditz): http://bit.ly/ECTweet Follow us on Facebook: http://bit.ly/ECFBPage Get our list of recommended games on Steam: http://bit.ly/ECCurator ____________ ♪ Get the intro music here! http://bit.ly/1EQA5N7 *Music by Demetori: http://bit.ly/1AaJG4H ♪ Get the outro music here! http://bit.ly/23isQfx *Music by Sean and Dean Kiner: http://bit.ly/1WdBhnm Caption author (Italian) Alessandro Cagiola Caption authors (English) mamazu 1995 trysel Category Education License Standard YouTube License