💥The lunar calendar💥 This used by Muslims to determine the dates of important religious events, such as the month of Ramadan and the two Eid festivals. The lunar calendar is based on the cycles of the moon, with each month beginning with the sighting of a new crescent moon. 📜🔍There are several verses in the Quran that mention the lunar calendar. For example, in Surah 2, verse 189, it is stated: "They ask you about the new moons. Say, 'These are signs to mark fixed periods of time for mankind