Ramadan (also known as Ramadhan or Ramzan) is the ninth month in the Islamic calendar. It is a period of prayer, fasting, charity-giving and self-accountability for Muslims in the United States. The first verses of the Koran (Qu’ran) were revealed to the Prophet Muhammad (also written as Mohammad or Muhammed) during the last third of Ramadan, making this an especially holy period.
— Read on www.timeanddate.com/holidays/us/ramadan-begins