Answer:
Khopesh – A form of swords invented in Egypt. Maces – Maces appeared in Egypt around 3600 B.C. Police Dogs and War Dogs were used by the Egyptians as early as 4000 B.C. Encryption - One of the earliest forms of encryption is symbol replacement, which was first found in the tomb of Khnumhotep II, who lived in 1900 B.C.
Explanation:
