How Long Have Humans Been On Earth? - Universe Today
While our ancestors have been around for about six million years, the modern form of humans only evolved about 200,000 years ago. Civilization as we know it is only about 6,000 years old, and industrialization started in the earnest only in the 1800s. While we’ve accomplished much in that short time, it also shows our … Continue reading "How Long Have Humans Been On Earth?"