The Basmala, or Tasmiyyah, is the titular name of the Islamic phrase "In the name of God, the Most Gracious, the Most Merciful". It is one of the most important phrases in Islam and is used by Muslims mostly before starting "good deeds" as well as beginning of most daily actions.
Mughal-era calligraphy
Islam is an Abrahamic monotheistic religion centered on the Quran and the teachings of Muhammad, the religion's founder. Adherents of Islam are called Muslims, who are estimated to number approximately 1.9 billion worldwide and are the world's second-largest religious population after Christians.
The Kaaba at Masjid al-Haram in Mecca, Saudi Arabia, the holiest Islamic site
Calligraphy showing the word Allah in Arabic in Hagia Sophia, Istanbul, Turkey
A 16th century Siyer-i Nebi image of the angel Gabriel visiting Muhammad
A Quran manuscript resting on a rehal, a book rest for the holy text