George Parker, Earl of Macclesfield
Remarks upon the solar and the lunar years, the cycle of 19 years, commonly called the golden number, the epact, and a method of finding the time of Easter, as it is now observed in most parts of Europe
George Parker, Earl of Macclesfield · 2020
ספרייה ציבורית, Project Gutenberg. בלי הרשמה.
Easter -- Early works to 1800Calendar -- Early works to 1800Calendar reform -- Early works to 1800