The Edain, also known as the "Men of Westernesse," are a group of Men who allied themselves with the Elves and played a significant role in the struggle against the darkness of Morgoth. The Edain are divided into several houses, including the House of Bëor, the House of Haleth, and the House of Hador. Each of these houses has its own distinct culture and history, and they played a significant role in shaping the history of Middle-earth.
Detailed essays written by Tolkien in the 1960s and 70s that expand on specific cultures. the peoples of middle-earth pdf