The Sages of Mummu were a secret order established in the first Old Earth kingdom, over 10,000 years ago, when most of the world belonged to nature, and half of the humanity still lived as primal hunters. The Mummu understood the dangers of civilization, and vowed themselves to fight against its excesses. Later, they presided from the serene land of Egypt for over 5000 years, gently guiding world's kings. There, they were called 'Mummies'; for they have long mastered the 'Symbiont from the Stars' and gained immortality. Their significance waned with the decline of Egypt, over 1000 years Before Caesar. Other secret groups became more influential, and the main Mummu temple in Thebes was eventually abandoned. Humanity progressed faster, but less wisely, under its new guides.