CALENDAR ART.

The article discusses the history of the art of calendar-making. It mentions that the Babylonians have estimated the duration of a lunar month with a margin of error of 2.2 seconds in the 6th century B.C. It states that Julius Caesar used the Egyptian year in making the Julian calendar standard throughout the Roman countries in 45 B.C. It adds that the Bruges calendar is made to be used year after year which has the days of the week numbered alphabetically with feast days.