Rise and Spread of Islam

A. Arabia in the 6th Century:

The Arabian Peninsula was divided among rival nomadic pastoral tribes (Bedouins) ruled by sheikhs. Blood feuds, female infanticide, and constant warfare were rampant. The commercial oasis city of Mecca was dominated by the wealthy Quraysh tribe, where the sacred shrine of the Kaaba housed over $360$ tribal stone idols.

B. Prophet Muhammad (570–632 CE):

• Born in Mecca in 570 CE into the Hashim clan. Known as *Al-Amin* ("The Trustworthy") for his honesty as a caravan trade manager for the wealthy widow Khadija, whom he later married.
• The Divine Call (610 CE): During deep meditation in Cave Hira on Mount Jabal al-Nour, Angel Gabriel (*Jibril*) revealed the first verses of the holy Quran, commanding him to preach absolute monotheism.
• The Hijrat (622 CE): Facing severe persecution and assassination plots from Meccan elites whose idol trade was threatened, Muhammad and his followers migrated $320\text{ km}$ north to Yathrib (renamed Madinat al-Nabi, the "City of the Prophet", or Medina). This historic migration is called the Hijrat, marking the starting epoch (1 AH) of the Islamic lunar calendar!
• Return to Mecca (630 CE): In 630 CE, the Prophet entered Mecca peacefully with an army of ten thousand, granted general amnesty to his former persecutors, and cleared the Kaaba of all $360$ idols, rededicating it solely to the worship of the One God, Allah. He died in Medina in 632 CE.

The word Islam means "submission to the will of Allah", and a follower is a Muslim ("one who submits").

The Five Pillars (*Arkan al-Islam*):

1. Shahada (Declaration of Faith): Reciting with firm conviction: *"La ilaha illallah, Muhammadur rasulullah"* ("There is no God but Allah, and Muhammad is the Messenger of Allah").
2. Salat (Obligatory Prayer): Performing ritual prayers five times daily (Fajr, Dhuhr, Asr, Maghrib, Isha) facing the direction of the Kaaba in Mecca (*Qibla*).
3. Zakat (Almsgiving / Charity): Giving an annual fixed percentage ($2.5\%$) of accumulated wealth to the poor, orphans, and destitute.
4. Sawm (Fasting): Complete abstention from food, drink, and worldly desires from dawn to dusk during the holy month of Ramadan to cultivate self-discipline and empathy for the hungry.
5. Hajj (Pilgrimage): The sacred pilgrimage to Mecca at least once in a lifetime for every physically and financially able Muslim.

A. The Four Rightly Guided Caliphs (Rashidun Caliphate, 632–661 CE):

After the Prophet's death, the political and spiritual leaders of the Muslim community were titled Caliphs (from *Khalifa*, successor):

1. Abu Bakr (632–634 CE): Close companion; suppressed tribal rebellions (Riddah wars) and initiated the compilation of the Quran.
2. Umar ibn al-Khattab (634–644 CE): Brilliant military strategist and administrator; annexed Syria, Palestine, Jerusalem, Egypt, and the Sasanian Persian Empire.
3. Uthman ibn Affan (644–656 CE): Standardized and distributed authoritative copies of the holy Quran across all Islamic provinces.
4. Ali ibn Abi Talib (656–661 CE): Cousin and son-in-law of the Prophet, renowned for justice and valor.

B. Umayyad & Abbasid Dynasties:

• Umayyad Caliphate (661–750 CE): Capital at Damascus, Syria; expanded the empire across North Africa into Spain (Al-Andalus) and the Indus valley (Sindh, 712 CE by Muhammad bin Qasim).
• Abbasid Caliphate (750–1258 CE): Capital at Baghdad, Iraq; marked the apex of Islamic scholarship, cosmopolitan wealth, and civilization.

A. Intellectual Achievements (The House of Wisdom / Bayt al-Hikma in Baghdad):

• Mathematics: Mathematician Al-Khwarizmi synthesized Indian numerals and decimal place value, introduced the concept of zero to the West, and invented Algebra (from his treatise *Al-Jabr*).
• Medicine: Ibn Sina (Avicenna) wrote the monumental *Canon of Medicine* (*Al-Qanun fi al-Tibb*), which served as the standard medical textbook in European universities for over five centuries. Al-Razi (Rhazes) distinguished smallpox from measles.
• Astronomy & Geography: Developed astrolabes, calculated the circumference of the Earth, and mapped global trade routes.

B. Architectural Heritage:

Islamic architecture created iconic structures characterized by:

• Monumental bulbous Domes and soaring slender Minarets (towers for the call to prayer).
• Horseshoe arches and central open courtyards (*Sahn*) with fountains for ablution (*Wudu*).
• Intricate, repeating geometric patterns called Arabesques and stylized Quranic Calligraphy, as human and animal representations are prohibited in religious art.