What is another word for Old Style calendar?
Pronunciation: [ˈə͡ʊld stˈa͡ɪl kˈaləndə] (IPA) 
There are several synonyms for the term "Old Style calendar," which refer to various historical calendar systems employed before the Gregorian calendar was introduced in 1582. Some of the common synonyms include Julian calendar, Roman calendar, Lunar calendar, Solar calendar, and Hijri calendar. The Julian calendar was developed by Julius Caesar in 45 BCE and was used until the 16th century in some parts of Europe. The Lunar calendar is based on the phases of the moon and was used by several ancient civilizations, including the Egyptian and Jewish. The Solar calendar is based on the orbit of the Earth around the Sun and was used in various countries, such as the Mayan and Aztec Empires. Finally, the Hijri calendar is based on the Islamic lunar cycle, dating back to the Prophet's migration in 622 CE.
