Lecture 11: The Calendar
Why are there leap years? This lecture explores the astronomical\norigins of the calendar. We will discuss lunar and solar calendars and\ntheir hybrids in history and tradition (for example, the Islamic Lunar\nCalendar and the Jewish Luni-Solar Calendar), and the Julian and\nGregorian Calendar reforms. Recorded 2006 Oct 4 in 100 Stillman Hall on\nthe Columbus campus of The Ohio State University.