4200 Years Ago a Global Mini Ice Age

The reason why Egypt fell apart around 4200 years ago was because of a mini ice age across the world. This dramatically reduced the rainfall in Egypt which fits perfectly with the Biblical account of the 10 plagues that followed. I didn't make this up but saw it in a BBC documentary entitled "Ancient Apocalypse - Death of the Nile."

They actually ate their own children in the Old Kingdom the famine was so bad, and lakes dried up.

In 1200 AD is an account of just such cannibalism in Egypt. If it could happen in 1200 AD and the famine was far worse 4200 years ago then no doubt cannibalism was part of their society.