Largest Religions in History (1 AD – 2100) | Islam Will Overtake Christianity

In 1 AD, Christianity had just 500,000 followers. Islam didn't exist yet. In 622 AD, Muhammad began preaching in Mecca. Within 80 years, 15 million people had converted — the fastest religious spread in history. By 2100, Islam will overtake Christianity for the first time ever. Not because of war or conquest — but because Nigeria, Pakistan, and Bangladesh are having children at twice the rate of Europe. This is 2,100 years of faith, conquest, and demographics. 📌 Chapters: 0:00 — 1 AD: Rome and Hinduism Dominate 0:48 — 300: Constantine Converts — Christianity Goes Roman 1:36 — 500: Rome Falls, Christianity Survives 2:24 — 700: Islam Born — Fastest Spread in History 3:12 — 900: Islamic Golden Age — Baghdad Leads the World 4:00 — 1200: The Crusades — Christianity vs Islam 4:48 — 1500: Reformation Splits Christianity 5:36 — 1700: Colonial Missions Expand Christianity 6:24 — 1900: 558M Christians — Empire Builds a Religion 7:12 — 1950: Soviet Atheism Creates 300M Secular People 7:36 — 2000: Christianity Hits 2 Billion 8:00 — 2100: Islam Overtakes Christianity 📊 Data: Pew Research Center · World Christian Database · McEvedy & Jones (1978) · Our World in Data ⚠️ Pre-1800 figures are historical estimates. Post-2024 are Pew Research projections. 🤖 AI-assisted production. 🔔 Subscribe to @rankthestats — we race the world's data every week. #Religion #Christianity #Islam #BarChartRace #DataVisualization #Hinduism #Buddhism #rankthestats