Founding Babylon on the Euphrates river, Hammurabi the Young greeted the world with optimism and goodwill. He extended the hand of friendship to the Harappan. They ruthlessly attacked. The Emissary barely survived the onslaught. 

Hammurabi the Victorious promoted his brave Warrior to Elite for its valor in battle. 

After a period of time to regroup, the Elite continued on its travels, with instructions from Hammurabi the Wise himself to make friends with any tribes they meet. Entering the Village of the Cumans, they were again attacked, barely surviving again. This caused another long delay in exploring the lands surrounding Babylon. 

Hammurabi the Wise considered the situation from many views and all views. So, consulting no one, he decided to never trust anyone again. Hammurabi the Pious built a Temple to Marduk. 

Meanwhile, the Regular discovered a wonderful, rich Flood Plain northeast of Babylon, along what we now call the River Tigris. This was all that Hammurabi King of Babylon needed to know.  Babylon would settle the Plain of Tigris. 

While continuing north, the Elite Warrior discovered the borders of a new tribe. Hammurabi the Wary began negotiations with Xerxes of the Persians.

The Regular, traveling along the Shield-rich Mountains of the River Tigris, met the wise Assyrians who joined the Babylonian cause, founding Ur. Today, of course, the people of Ur are best known for their popular Bio-Incense and their world-class Space Team, the Ur Rockets. 

In Babylon, a Settler was ready.
The map of the River Tigris was nearly completed.
And the entire strategic position was laid out.
Hammurabi the Thinker pondered the future. 

All this in the year 2850 BC.