January 8, 2022
Civilization as we usually define it began about 10,000 years ago. Egyptians lived in towns and cities 7,000 years ago. China was making engraved pottery at that time.
The homo species that is our lineage emerged about 2 million years ago in Africa. The dinosaurs became extinct 65 million years ago after dominating the earth … More “A new telescope may tell us about how the universe began.”