Atheist Delusions: The Christian Revolution and Its Fashionable Enemies is a 2009 book by Professor David Bentley Hart

David Bentley Hart

David Bentley Hart is an Eastern Orthodox theologian, philosopher, and cultural commentator.Hart was educated at the University of Maryland, the University of Cambridge and the University of Virginia. He has taught at the University of Virginia, the University of St. Thomas , Duke Divinity School,...

 that sets out to explore many of the historical and popular misconceptions of Christianity

Christianity

Christianity is a monotheistic religion based on the life and teachings of Jesus as presented in canonical gospels and other New Testament writings...

's detractors.
Rather than confronting each argument and counter-argument individually, Hart attempts to explain the people, history, events, and reasons behind them, charting Christianity's rise, achievements, mistakes, and recent decline in the face of materialism

Materialism

In philosophy, the theory of materialism holds that the only thing that exists is matter; that all things are composed of material and all phenomena are the result of material interactions. In other words, matter is the only substance...

, and the power struggles of world leaders, as well as aiming to debunk popular historical myths used to attack Christianity.
This takes the format of several linked essays divided into sections as Hart explores the role of Christianity and its interactions with other faiths, with the objective of showing how very different Christianity is and was from the cults and religions of the time, as well as how it has changed, forming the basis of modern culture, dealing with the impact of the gradual decline that began with the separation of Church and state

Separation of church and state

The concept of the separation of church and state refers to the distance in the relationship between organized religion and the nation state....

, as well as the age of war that resulted.