Hernan Cortes is a Spanish conquistador and explorer who defeated the Aztec empire and claimed Mexico for Spain.
Answer:
West Germany (1955; from 1990 as Germany)
Explanation:
Rare property of obsidian that is advantageous to archaeologists is that it occurs in volcanic flows that are remarkably homogeneous in chemical composition within a flow, but preserve elemental signatures that are unique to volcanic centers, and in some cases individual flows.
