The Roman Empire in 125AD Under the Rule of Hadrian.
Per historian Christopher Kelly: “Then the empire stretched from
Hadrian’s Wall in drizzle-soaked northern England to the sun-baked banks of the Euphrates in Syria; from the great Rhine-Danube river system, which snaked across the fertile flat lands of
Europe from the Low Countries to the Black Sea; to the rich plains of the North African coast and the luxuriant gash of the Nile Valley
in Egypt. The empire completely circled the Mediterranean…referred to by its conquerors as MARE NOSTRUM—Our Sea.”