The words "czar" and "kaiser" both came from the word "Caesar.
" "Caesar" was at first the last name of a famous ruler, Julius Caesar. Then it became a title that meant "emperor."
The change from being a familial name to a title adopted by the Roman Emperors can be dated to about AD 68/69, the so-called "Year of the Four Emperors".
The first known bearer of the name "Caesar" was one Numerius Julius Caesar (born before 300 BC)
After one of his battles in Asia, Julius Caesar sent back a famous message to Rome. It is famous because it told so much in so few words. The message was Veni, vidi, vici. Translated into English the message is, "I came, I saw, I conquered."
The month of July was named for him.
Gaius Julius Caesar Augustus is considered the first emperor of the Roman Empire, which he ruled alone from 27 BC until his death in AD 14
