Where are the source areas of the world's major beliefs systems Explain how each diffused?

The world's major belief systems originate from distinct regions: Hinduism from the Indian subcontinent, Buddhism also from India, Islam from the Arabian Peninsula, Christianity from the Eastern Mediterranean, and indigenous spiritual practices from various localities worldwide. Hinduism diffused primarily through trade and cultural exchange, while Buddhism spread via missionaries and the Silk Road. Islam expanded through conquest, trade, and cultural diplomacy, while Christianity proliferated through missionary work and colonization. Indigenous belief systems often spread through oral tradition and local practices, adapting to and integrating with other religions over time.