In this episode we discuss various ancient calendar methods, as well as the forerunners of clocks across different cultures. Dan McGinnis returns as guest.     Thanks to Mike and Donna Bleskie, Ian Davis, Perry, Kimberlyn Crowe, Levent Kemal Sadikoglu, Russ Mangum, and more for supporting the show! If you’d like to do the same, please visit http://www.patreon.com/hi101. Paypal: paypal.me/hi101 Ko-fi: ko-fi.com/hipodcast