Because of this region's relatively abundant access to water, the earliest civilizations were established in the Fertile Crescent, including
the Sumerians.
Trans-Saharan trade routes promoted the growth of powerful trading cities in the time period because they traded valuable items like slaves, gold, and salt, which increased the net worth of the cities and allowed for economic growth that way. Because of the trading, the Trans-Saharan cities could grow
1941 and 1945, across German-occupied Europe, Nazi Germany and its collaborators systematically murdered some six million Jews, around two-thirds of Europe's Jewish population.[a][c] The murders were carried out in pogroms and mass shootings; by a policy of extermination through work in concentration camps; and in gas chambers and gas vans in German extermination camps, chiefly Auschwitz, Bełżec, Chełmno, Majdanek, Sobibór, and Treblinka in occupied Poland
The Roman Empire had grown so vast due to conquering vast amounts of land that it was no longer feasible to govern all the provinces from the central seat of Rome. So, Emperor Diocletian divided the empire into halves with the Eastern Empire governed out of Byzantium, and the western portion of the empire governed out of Rome.
He stressed for the need of a limited government and the protection of evil.
Idea #1: Need for a limited government
Idea #2: Protection of civil liberties