Ramadan is a month of fasting.
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 . Fasting the month of Ramadan was made obligatory ( wājib ) during the month of Sha ` ban , in the second year after the Muslims migrated from Mecca to Medina .