The indigenous religion in Japan is Shinto. Shinto worships natural objects. There is neither written scriptures nor absolute god. In around the 6th century, Buddhism was brought over from China, and...
According to Adherents.com, the following are the top 20-odd religions on the planet purely in numbers.
Christianity: 2.1 billion
Islam: 1.5 billion
Secular/Nonreligious/Agnostic/Atheist: 1.1...