Christian History

How Christianity Spread

Christianity spread from Jerusalem outward: first through the apostles across the Roman world, then far beyond it. Crucially, it was never only a Western faith. It grew early and deeply in the Middle East, North Africa, and Asia, reaching Egypt, Syria, Armenia (the first Christian nation), Ethiopia, Persia, and India in the early centuries. Today Christianity is the world's largest and most globally distributed religion, with its center of gravity increasingly in the global South.

From Jerusalem outward

The pattern of the whole story is set in that verse. The apostles began in Jerusalem and moved outward. Paul planted churches across Asia Minor and Greece. By the end of the first century there were Christians throughout the eastern Mediterranean, and the faith reached Rome itself early.

A faith of the East and South, not only the West

It is a common misunderstanding to picture early Christianity as European. In fact it flourished first and most in the East and South. Egypt had a major Christian center in Alexandria by the second century. North Africa gave the church Tertullian, Cyprian, and Augustine. Armenia became the first nation to adopt Christianity as its state religion, around 301 AD, before Rome did. Ethiopia embraced the faith in the fourth century and has an unbroken Christian history ever since. Syria and Mesopotamia were home to a vibrant Syriac Christianity. The Church of the East carried the Gospel along trade routes into Persia, Central Asia, and reached China by 635 AD, recorded on a stone monument at Xi'an. Ancient tradition holds that the apostle Thomas brought the faith to India, where the Saint Thomas Christians trace their roots to the first century.

Why it spread

Historians point to several human factors: the network of Roman roads and a common language, the compelling message of a risen Savior and a God who is love, the church's radical care for the poor and the sick (Christians famously stayed to nurse plague victims when others fled), the dignity it gave to women, slaves, and outsiders, and the witness of martyrs. Tertullian wrote that 'the blood of the martyrs is seed'. Christians would add that behind all of it was the work of the Holy Spirit.

A global faith today

After the age of exploration and the modern missionary movement, Christianity spread to the Americas, sub-Saharan Africa, and across Asia and the Pacific. Today it is the largest religion in the world and the most evenly distributed across the globe, and its fastest growth is now in Africa and Asia. The church that began with a few frightened disciples in Jerusalem is now found in every nation on earth.

What this means for us

The spread of the faith is not a story of one culture conquering others. It is the story of a message that has made a home in every culture, because it answers something universal in the human heart. The vision at the end of the Bible is a great multitude 'of all nations, and kindreds, and people, and tongues' (Revelation 7:9) gathered around Christ. History has been quietly moving toward that picture all along.

Frequently asked questions

How did Christianity spread so quickly?

Through the apostles' preaching along Roman roads and trade routes, a compelling message of a risen Savior, the church's radical care for the poor and the sick, the dignity it gave to the marginalized, and the witness of martyrs. Christians credit the work of the Holy Spirit above all.

Was early Christianity only a Western or European religion?

No. It grew first and most deeply in the Middle East, North Africa, and Asia. Armenia became the first Christian nation around 301 AD, Ethiopia in the fourth century, and the Church of the East reached Persia, Central Asia, and China by 635 AD. It was global from early on.

Where is Christianity growing today?

Christianity is the world's largest religion and the most globally distributed. Its fastest growth today is in sub-Saharan Africa and parts of Asia, so that its center of gravity has shifted increasingly to the global South.