Calendars Flashcards
Lunisolar Calendar
Calendar that follows the the solar year but uses the moon phases for its months.
Intercalary Month
Extra months added to lunisolar calendars to line up the lunar months with the solar year.
Metonic Cycle
A calendar cycle where 7 intercalary months are added over a period of 19 years in order to line up the lunar months to the solar year.
Hebrew Calendar
New months begin on the new moon; Festival of Passover and Booths start on full moons, halfway through their respective months.
Modern Calendar
Solar calendar with a leap day added every 4 years, inspired by the Egyptian’s solar calendar; months are named after the months of the Old Roman calendar; modified by Pope Gregory XIII to skip three leap days every 400 years.