Abraham went to Mitsrayim c. 2000 BCE. At that time the Egyptians knew themselves as Kemet, not Misr. The earliest reference to the name Misr to my knowledge is from the Amarna Letters (?) c. 1350 BCE. This is after the Hebrews reached Israel. How do we explain this?

Arguably one of the most important military inventions of World War 2 was the proximity fuze. It greatly increased the lethality of artillery shells, since an airburst has a higher chance of covering trenches with shell fragments, and soldiers laying on the ground in as low a position as possible...