Ramadan is before the Quran was revealed.
According to Islam , Muhammad 's first revelation was the event in which Muhammad was visited by the archangel Gabriel in 610 CE , who revealed to him a verse from the Quran . Ramadan . also romanized as Ramazan , Ramadhan , or Ramathan ) is the ninth month of the Islamic calendar , and is observed by Muslims worldwide as a month of fasting ( Sawm ) to commemorate the first revelation of the Quran to Muhammad according to Islamic belief . Ramadan ( Arabic : رمضان ) or Ramadhan is the ninth month of the Islamic calendar , and the month in which the Quran was revealed .