Answer: Hammurabi's Code
Explanation: Hammurabi was the Babylonian king, a member of the Babylonian Dynasty that ruled Mesopotamia. Hammurabi himself ruled from 1792 to 1750 BC, and fought against other kingdoms and dynasties in Mesopotamia created the great Babylonian Empire. He is best known for his law written about 1754 BC, and contains 282 rules, laws, and this is considered one of the oldest written laws in the world. This law precisely defines social classes, rights and obligations.
The invention of the vapor machine
Except for the king, every noble in a feudal society served as a <u>vassal </u>to a higher noble. The vassal in medieval Europe, was a man who was granted land in exchange for service and loyalty to an older man or is more important. They made a feudal contract that was an exchange of promises between lords and vassals. In feudal society was the monarch, then the powerful lords who had vassals.
