In ancient Egypt, the pharaoh was believed to be a god-king, embodying both political and religious authority.

While Taoism is a philosophical tradition, it is not typically classified as a major world religion.

Karma is a fundamental principle in Hinduism, emphasizing the cause-and-effect relationship between actions and their consequences.

Charlemagne was crowned Emperor of the Romans by Pope Leo III in 800 AD, establishing the Holy Roman Empire.

The Inquisition was a series of ecclesiastical tribunals established by the Catholic Church to combat heresy and maintain orthodoxy.

The Protestant Reformation was a religious movement that began in the early 16th century, led by various reformers, including Martin Luther, John Calvin, Henry VIII, and Ulrich Zwingli.

The Thirty Years' War was a complex conflict involving religious, political, and territorial disputes among various European powers.

The Enlightenment was a period of intellectual and cultural change in Europe during the 18th century, characterized by a focus on reason, science, and progress.

The French Revolution was a complex event influenced by a combination of social, political, economic, and intellectual factors.

The Industrial Revolution brought about significant technological, economic, and social transformations.

The 20th century was a period of immense change and upheaval, marked by major historical events and developments.

Secularism has had a multifaceted impact on societies, including a decline in religious influence, increased religious diversity, and state neutrality towards religion.

The role of religion in contemporary politics varies across countries, with some experiencing significant religious influence and others having minimal or no religious involvement.

The future of religion is difficult to predict, as it depends on various factors such as social, cultural, and political changes.