Christianity
Christianity became the main religion of Spain during the Roman days. Christianity spread around the Roman Empire and became its main religion
Missions.
Muslim converts to Christianity
missions
it doesn't
No it did not. It started in Judea.
They were converting the indigenous people to Christianity in the form of Roman Catholicism.
Christianity - and the particular denomination is Catholicism
never
Spain built missions in the borderlands of New Spain to convert Native Americans to Christianity. These missions served as religious communities where Native Americans were taught Christianity, agriculture, and other skills to assimilate them into Spanish colonial society.
Missions.