Philippa Martyr/The Conversation For millennia, humans had one obvious and reliable source of light – the Sun – and we knew the Sun was essential for our survival. This might be why ancient religions – such as those in Egypt, Greece, the Middle East, India, Asia, and Central and South America – involved Sun worship. Sun worship – such as to the Greek god Helios – was common to many cultures. (Neoclassicism Enthusiast/ CC BY-NC-SA 4.0) Read moreSection: NewsHistory & ArchaeologyHistoryAncient TraditionsRead Later