The tree levels of sumerian society are Upper class (contained nobles, priests, government officials and warriors), Free man Class (Merchants traders and artisans, and slavery.
Hammurabi was a Babylonian ruler who expanded his empire to control most of Mesopotamia by 1750 BCE. Hammurabi governed his empire by the use of his codes that were engraved in large basalt steles that stood in his cities.
The Proclamation of 1763 prohibited colonial settlement west of the Appalachian Mountains
The correct answer is C - glossary. The glossary gives definitions of important terms within a text.