Islam is the 2nd largest religion in the world, with 1.6 billion people declaring their faith in Muhammad and Allah. The largest religion? Christianity.

With today’s birth rates and conversions to the religion, Islam is the fastest-growing religion in the world.

Muhammad is known as the father of the religion.

The religion started in 622 AD when Muhammad traveled from Mecca to Medina. The day he left Mecca is the day that starts the Islamic calendar. He left Mecca because he heard rumors that some of the tribesmen were going to assassinate him.

Islam means “to surrender.” Muslim means “one who peacefully surrenders to God.”

Indonesia has the most Muslims in one country, followed by Pakistan, India, and Bangladesh.

The Islamic calendar is 11 days shorter than the Western calendar. Islamic calendars are based on the moon’s phases, while Western calendars depend on the Earth’s orbit around the Sun.

The first skilled and specially trained pharmacists came from the Islamic world. They made their own medicines and worked closely with physicians.

Allah has 99 names, with each one having a different meaning.

15% of all Muslims are Arab.