Answer:
Mycenaeans are called as first greeks because they are the ones who first spoke the Greek language.
Step-by-step explanation:
Mycenaean civilization is located on the mainland of Greek i.e on the Peloponnese (the southern peninsula of Greece). They are the Greeks. They survived between 1650 and 1200 BC. At that time it has a population of 30000 people. It is celebrated by homer as king Agamemnon, who led the Greeks in the Trojan war.