Islam Primer

Updated September 9, 2022 | Infoplease Staff

The Islamic world—history, beliefs, and culture

Dome of the Rock

Countries with the largest Muslim populations

  1. Indonesia
  2. Pakistan
  3. India
  4. Bangladesh
  5. Egypt
  6. Turkey
  7. Nigeria
  8. Iran
  9. Algeria
  10. Morocco

Introduction to Islam

Islam, one of the three major monotheistic faiths . . .


Islamic Beliefs

The five pillars of Islam


Muhammad: Prophet of Islam

His life and call to prophecy


Glossary of Islam

Important figures, branches, and traditions


Islam in America

Muslims move to the mainstream


Major Islamic Holidays

Muharram, Mawlid al-Nabi, Eid al-Fitr, and Eid al-Adha


Islamic Holidays, 2010–2030

Dates for Ramadan and Eid al-Fitr, and more



The month of fasting



The annual pilgrimage to Mecca



The Islamic World

There are more than 1 billion Muslims worldwide, fewer than one fifth of whom are Arab. Indonesia has the largest Muslim population in the world.

Islamic Conference Member States

Islamic Conference Member States

Islamic History and Culture



Philosophy, Literature, and Art of the Islamic World


Recommended Sites

Sources +
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