Collection of facts about the Vedic period

This post is a collection of facts about the Vedic period (1500 - 1100 BC). There are 8 facts listed below. Source: Wikipedia

• Based in the northern India and Punjab region
• Proceeded by the Indus Valley Civilization
• Vedas composed and orally transmitted (c. 1500 - 900 BC)
• Old Indo-Aryan language
• Lead to Hinduism and the Hindu synthesis
• Influenced the Kuru kingdom (union of Indo-Aryan tribes)
• Class system and Brahminism established
• Challenged by śramaṇa movements (for example Jainism and Buddhism)