Russian - Englesh
Wikipedia Portal: ChristianityThis is essentially a Wikipedia unit.
There are separate portals: Evangelical Christians, Catholicism, Lutheranism, Orthodoxy, Anglicanism.You can learn the history of Christianity, and not having lamented, like a book, but by the name of places, the names of saints. Orient in history and find the right details.
In addition, you can participate, it's the same Wiki.