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Rabi' al-Awwal (), also known as Rabi' al-Ula (, ; ) or Rabi' I, is the third month of the Islamic calendar. The name Rabëÿ al-þAwwal means 'the first month' or 'the beginning of spring', referring to its position in the pre-Islamic Arabian calendar.
The word "Rabi" means "spring" and Al-awwal means "the first" in the Arabic language, so "Rabi' al-awwal" means "the first spring" in Arabic. The name seems to have to do with the celebratory events in the month, as spring marks the end of winter (a symbol of sadness) and consequently the start of happiness. As the Islamic calendar is a purely lunar calendar, the month naturally rotates over solar years, so Rabëý al-awwal can fall in spring or any other season. Therefore, the month cannot be related to the actual season of spring.
And it's mentioned in the Arabic lexicons that Arabs add the word "month" to Rabi' al-Awwal, Rabi' al-Akhir and Ramadan months only, and most of them allow adding the word "month" to the other months too.
The Islamic calendar is a purely lunar calendar, and months begin when the first crescent of a new moon is sighted. Since the Islamic lunar year is 11 to 12 days shorter than the solar year, Rabëâ al-Awwal migrates throughout the seasons. The estimated start and end dates for Rabëâ al-Awwal are as follows (based on the Umm al-Qura calendar of Saudi Arabia):
Other events: