On the essentials named in the ancient creeds, Christians are remarkably united. On many other questions the great traditions genuinely differ. This atlas maps both, one topic at a time, presenting each tradition as its own faithful would recognize it, and never treating one view as the view of all.
How to read this atlas
For each subject you will find the same honest shape: first what nearly all Christians hold (the creedal, ecumenical core), then where the Catholic, Orthodox, and major Protestant traditions differ, then what remains genuinely disputed or open, and finally a short source ladder, how the answer is weighed from Scripture to the ecumenical creeds to tradition to scholarship. The aim is unity without erasing difference, and difference without erasing charity.
Christians have never agreed on everything, and this atlas does not pretend they have. Yet under all the difference runs one confession, that Jesus Christ is Lord, crucified and risen for us, and that God calls everyone home. You are welcome here whatever you believe, and whatever you are still working out.
On the essentials confessed in the ancient creeds, that God is Father, Son, and Holy Spirit; that Jesus is truly God and truly man, crucified and risen; that salvation is by grace, Christians are remarkably united. On many further questions, such as baptism, communion, and the end times, the traditions genuinely differ.
What are the main branches of Christianity?
The three great families are the Catholic Church, the Eastern Orthodox churches, and the Protestant traditions (themselves many, from Lutheran and Anglican to Baptist, Methodist, and Pentecostal). They share the creedal core and differ on authority, the sacraments, and more.
Which Christian tradition is right?
This atlas does not tell you that; it lays out each tradition fairly, as its own faithful would recognize it, with the sources, so you can weigh them honestly. All three families confess Jesus Christ as Lord, and that shared confession is where we begin.