The History and Mystery of Calendars

Seminar by Prof. Palash Baran Pal (Saha Institute of Nuclear Physics, Calcutta).

In this talk the speaker discusses the main problems of calendrical astronomy, viz., that the units (day, month, year) are given to us and their ratios are not integers. It resulted in three main systems of
calendar: solar, lunar, lunisolar. Prof. Pal gives examples of each kind and trace the developments of different calendars, e.g., the Roman calendar, the Islamic calendar, the calendars of North and West India, and the Bengali calendar.

Видео The History and Mystery of Calendars канала HBCSE-TIFR