Atheist U Library : Browse Religions

Lesson Overview

Islam is one of the world’s largest religious traditions. It began in the Arabian Peninsula in the 7th century CE and is centered on belief in one God, known in Arabic as Allah. Followers of Islam are called Muslims.

Islam teaches that Muhammad, who lived in Mecca and Medina, was a prophet who received revelations that were later collected in the Qur’an, Islam’s central sacred text. Muslims understand Islam as part of a broader tradition of monotheism connected to earlier figures such as Abraham, Moses, and Jesus.

This lesson introduces Islam from an academic and historical perspective. It explains Islam’s origins, central beliefs, sacred text, major practices, and global diversity.

Learning Objectives

By the end of this lesson, you should be able to:

• Describe the historical origins of Islam.
• Identify Muhammad’s role in Islamic tradition.
• Explain the importance of the Qur’an.
• Describe the Five Pillars of Islam.
• Recognize the diversity of Muslim communities around the world.
• Define several key terms used in the study of Islam.

1. Islam in Historical Context

Islam emerged in the 7th century CE in western Arabia, especially in the cities of Mecca and Medina. This region was home to tribal communities, trade networks, poetry, local religious practices, and contact with Jewish, Christian, and other religious traditions.

The word Islam is often translated as “submission” or “surrender,” referring to submission to God. A Muslim is one who submits to God. These terms are rooted in Arabic and are central to Islamic religious identity.

From an academic perspective, Islam developed in a late antique environment shaped by trade, empire, oral tradition, scripture, and monotheistic religious ideas. Within a century of its beginnings, Muslim communities had expanded far beyond Arabia into parts of the Middle East, North Africa, Persia, and beyond.

2. Muhammad and the Early Muslim Community

Muhammad is the central human figure in Islam. He was born in Mecca around 570 CE and became known as a religious teacher, community leader, and prophet. In Islamic tradition, a prophet is a person who receives and communicates a message from God.

According to Islamic tradition, Muhammad began receiving revelations around the age of 40. These revelations addressed belief in one God, moral responsibility, social justice, prayer, charity, judgment, and the need to turn away from idolatry. Idolatry refers to the worship of images, objects, or beings regarded as false gods by a religious community.

Muhammad and his followers initially faced opposition in Mecca. In 622 CE, the Muslim community migrated to Medina. This migration is called the Hijra. The Hijra became so important in Islamic history that it marks the beginning of the Islamic calendar.

In Medina, Muhammad became the leader of a growing religious and social community. After his death in 632 CE, Muslim leaders and communities continued to spread Islam, develop institutions, preserve sacred texts, and form legal, theological, and spiritual traditions.

3. The Qur’an

The Qur’an is the central sacred text of Islam. Muslims regard it as the revelation given to Muhammad in Arabic. From an academic perspective, the Qur’an is studied as a religious, literary, historical, and cultural text that shaped the formation of Islamic belief and practice.

The Qur’an is divided into chapters called surahs, which vary in length. Its content includes teachings about God, creation, prophets, moral responsibility, prayer, charity, judgment, law, community life, and human accountability.

The Qur’an refers to many figures also known from Jewish and Christian traditions, including Adam, Noah, Abraham, Moses, Mary, and Jesus. Islam interprets these figures within its own theological framework.

Because the Qur’an was revealed and preserved in Arabic, Arabic has a special role in Islamic worship, scholarship, and recitation. Translations of the Qur’an are widely used for study, but many Muslims distinguish translations from the Arabic text itself.

4. Hadith and Sunnah

In addition to the Qur’an, Islamic tradition also draws on hadith and sunnah.

Hadith are reports about the sayings, actions, approvals, or habits of Muhammad. These reports were collected, studied, classified, and debated by Muslim scholars. Hadith literature became important for law, ethics, ritual practice, theology, and biography.

Sunnah refers to the model or example of Muhammad. Many Muslims look to the sunnah as a guide for how religious teachings should be lived in practice.

Scholars developed methods for evaluating hadith, including attention to chains of transmission and the content of reports. A chain of transmission is a list of people through whom a report was passed down.

5. Core Beliefs in Islam

Islam is usually described as a monotheistic religion. Monotheism means belief in one God. The central Islamic concept of divine unity is called tawhid. Tawhid emphasizes that God is one, unique, and not to be associated with other divine beings.

While Muslims differ across cultures and traditions, several beliefs are widely shared:

• Belief in one God
• Belief in angels
• Belief in revealed books
• Belief in prophets and messengers
• Belief in a final judgment
• Belief in moral responsibility

Islam also places strong emphasis on accountability. Human beings are understood as morally responsible for their actions and as accountable before God.

6. The Five Pillars of Islam

The Five Pillars are central acts of worship and religious practice in many Muslim communities. They provide a basic structure for Islamic religious life.

Shahada: Profession of Faith

The shahada is the profession of faith that affirms belief in one God and Muhammad’s role as God’s messenger. It is a central statement of Muslim identity.

Salat: Prayer

Salat refers to ritual prayer performed at set times each day. It includes physical postures, recitation, and orientation toward Mecca.

Zakat: Almsgiving

Zakat is a required form of charitable giving. It reflects concern for social responsibility, economic justice, and care for those in need.

Sawm: Fasting

Sawm refers to fasting, especially during the month of Ramadan. During Ramadan, many Muslims fast from dawn to sunset as a practice of discipline, remembrance, and community identity.

Hajj: Pilgrimage

Hajj is the pilgrimage to Mecca, expected of Muslims who are physically and financially able to perform it. It includes specific rituals connected to Islamic memory, equality, worship, and community.

7. Sunni and Shi‘a Islam

The two largest branches of Islam are Sunni Islam and Shi‘a Islam. Their historical differences began with debates over leadership after the death of Muhammad.

Sunni Islam became the largest branch of Islam. Sunni Muslims generally emphasize the authority of the Qur’an, the sunnah of Muhammad, scholarly consensus, and legal schools that developed over time.

Shi‘a Islam places special emphasis on the leadership of the family of Muhammad, especially through figures known as Imams. In Shi‘a tradition, an Imam is a divinely guided leader with spiritual and, in some contexts, communal authority.

Sunni and Shi‘a communities share many core Islamic beliefs and practices, but they differ in areas of leadership, history, law, ritual memory, and religious authority.

8. Islamic Law and Ethics

Islamic law is often called sharia. Sharia literally refers to a path or way and is commonly used to describe the ideal framework for living in accordance with Islamic teachings.

Fiqh refers to human understanding and interpretation of Islamic law. This distinction is important: sharia is often understood as the ideal divine path, while fiqh refers to scholarly legal reasoning and practical rulings.

Islamic ethics addresses personal conduct, family life, business, charity, justice, worship, food, modesty, speech, social responsibility, and care for others. Muslim communities and scholars may differ in how they interpret and apply legal and ethical teachings in different times and places.

9. Islam as a Global Religion

Islam is practiced across the world, including in the Middle East, North Africa, Sub-Saharan Africa, South Asia, Southeast Asia, Europe, North America, Latin America, and Oceania. The largest Muslim populations are not limited to Arab-majority countries; many Muslims live in countries such as Indonesia, Pakistan, India, Bangladesh, Nigeria, and Turkey.

Muslim communities are culturally diverse. They speak many languages, follow different legal and theological traditions, and express Islam through varied forms of architecture, poetry, music, scholarship, clothing, family life, and local custom.

Because of this diversity, Islam should not be understood as a single cultural system. It is a global religious tradition shaped by local histories, languages, politics, migration, and social life.

10. Studying Islam Academically

A neutral academic study of Islam seeks to understand Islamic beliefs, practices, texts, institutions, and communities without promoting or rejecting the religion. It distinguishes between describing what Muslims believe and evaluating whether those beliefs are true.

Academic study also recognizes diversity within Islam. Muslim communities differ by region, sect, school of law, theology, ethnicity, class, gender, political context, and historical experience.

Responsible study of Islam avoids stereotypes and recognizes that Muslims, like members of all major religious traditions, interpret their faith in many different ways.