The Crescent Moon and Star: Symbolism in Islam 

The crescent moon and star are often associated with Islam as a symbol, despite not being mentioned in the Quran 

This symbol is commonly seen on flags of several Muslim-majority countries

The use of the crescent moon and star in Islamic culture can be traced back to the Ottoman Empire

It is believed that the Ottomans adopted the symbol from the Byzantine Empire

The symbol is sometimes used to mark the beginning of Ramadan, the holy month of fasting for Muslims 

The crescent moon is used in the Islamic lunar calendar to determine the start of months 

While not a religious requirement, many mosques and Islamic organizations incorporate the crescent moon and star into their logos and designs 

The crescent moon and star have become a recognizable cultural emblem of Islam worldwide