4,000-year-old burials in Sudan reveal world's oldest known evidence of head straps
Around 4,000 years ago, women in Nubia were using tumplines, a form of head strap, to carry around goods and young children.
What was the first alphabet in the world?
Experts told Live Science it was probably the proto-Sinaitic script, which was invented about 4,000 years ago by Canaanite ...