Everyone has their favorite holiday, but do you know how your favorite holiday came into being? The answers may surprise you. For instance, in 12th century England, New Year’s Day was celebrated on March 25th, but the ancient Celts celebrated their New Year (Sumhain) on November 1st. So why do we now celebrate the New Year on January 1st? And why do we now use the Gregorian Calendar as opposed to the Julian Calendar? Also, did the Druids really use human sacrifices during their celebrations? And why would shepherds be tending their flocks in the middle of December? Did slavery still exist after June 19, 1865? Here in our 30th episode we answer every single one of those questions and much more!