Islam is a monotheistic religion founded in the 7th century in the Arabian Peninsula. It is based on the teachings of the prophet Muhammad and is the second-largest religion in the world, with over 1.8 billion followers.

Here are some key details about Islam:

- Core Beliefs:
- Tawhid (Oneness with God)
- Risalah (Prophethood)
- Ma'ad (Day of Judgment)
- Adab (Revelation)
- Qadr (Divine Decree)

- Five Pillars:
- Shahada (Declaration of Faith)
- Salah (Prayer)
- Zakat (Charity)
- Sawm (Fasting)
- Hajj (Pilgrimage)

- Six Articles of Faith:
- Belief in God
- Belief in Angels
- Belief in Revealed Books
- Belief in Prophets
- Belief in the Day of Judgment
- Belief in Divine Decree

- Major Practices:
- Prayer (Salah)
- Fasting (Sawm)
- Charity (Zakat)
- Pilgrimage (Hajj)
- Recitation of the Quran

- Important Figures:
- Prophet Muhammad (peace be upon him)
- Abu Bakr (First Caliph)
- Umar ibn Al-Khattab (Second Caliph)
- Uthman ibn Affan (Third Caliph)
- Ali ibn Abi Talib (Fourth Caliph)

- Sacred Texts:
- Quran (Revealed Book)
- Hadith (Prophetic Traditions)

- Branches of Islam:
- Sunni
- Shia
- Sufism

- Important Holidays:
- Eid al-Fitr (End of Ramadan)
- Eid al-Adha (Feast of Sacrifice)
- Lailat al-Mi'raj (Night Journey)
- Lailat al-Bara'ah (Night of Forgiveness)

This summary provides a brief overview of the core beliefs, practices, and important figures in Islam. If you have specific questions or want further information, feel free to ask!