WORLD RELIGIONS

Detailed explanation-1: -It originated in present-day North India as a śramaṇa–movement in the 5th century BCE, and gradually spread throughout much of Asia via the Silk Road. It is the world’s fourth-largest religion, with over 520 million followers (Buddhists) who comprise seven percent of the global population.

Detailed explanation-2: -World’s largest religion by population is still Christianity | Pew Research Center.

Detailed explanation-3: -Pew Research Center organizes the world’s religions into seven major categories, which includes five major religions (Christianity, Islam, Buddhism, Hinduism, and Judaism), one category that broadly includes all Folk/Traditional religions, and an unaffiliated category.