A:
The two things that Islam and Christianity have in common, that would lead to their expansion, are conquest and trade. Perhaps intolerance of other religions is a third.
When Christianity became the official religion of the Roman empire in the fourth century, it was inevitable that it would be the religion of the entire Mediterranean area and of all Europe. Persecution would ensure that all other religions were eliminated throughout this area.
When European nations began to colonise the New World, it was a time of religious fervour, particularly in Spain and Portugal. It is natural that the soldiers and missionaries took Christianity with them to the New World and imposed it on the natives.
The rest is history. Christianity allowed no competitors wherever it had absolute control, and this now included all Europe, the Americas, much of the Philippines and the Pacific region.
the 11 sep. event made a high attention to Islam and people of world started researching and studying about Islam and found it useful and used it.
People spread the message to others then they spread it to others and so on until it became a world-wide religion.
Christianity is the most popular religion practiced around the world, with over 2 billion followers.
The religion with the largest population percentage in the world is Christianity.
Christianity!
Christianity
Christianity has never become world wide.
The most practiced religion in the world is Christianity. There are about two billion practicing Christians. About half of these are Catholics, and the majority of other Christian faiths include Protestants and Anglicans.
Catholicism is the largest denomination within Christianity. Christianity itself is the largest religion in the entire world, hence Catholicism is a major world religion.
The most concentrated religion in the world is in England or the USA. The religion is Christianity.
Christianity
Without Constantine's decision to adopt Christianity as the religion of empire, Christianity might have remained a minor religion in the Roman Empire. Without Constantine being followed by ruthless Christian successors as emperors, his establishment of Christianity in a favoured position in the empire could have fallen away, as former pagans who became Christians for political and financial advantage returned to their traditional faiths. It was the dynastic succession of Constantine that provided the circumstances for Christianity to become a world religion.
Christianity