The Clovis culture was named by archaeologists after splint spearheads that were discovered in an area at Clovis, New Mexico last 1930s. The Clovis people are not the first one to to have come to America. They are believed to be hunters who made their way through Bering land bridge.
A political map. This is because it shows population of people and their movements into certain regions
Babylonia had a number of rulers, but I think the one you mean, the one that is particularly know for the laws was Hammurabi (who lived in 18th and 17th century BC). The law is known as the Code of Hammurabi.