Multiple artifacts from the Iron and Bronze Ages near tumulus burials have been unearthed in central and southern Albania, which has similar affinity with the sites in southwestern Macedonia and Lefkada. Archaeologists have come to the conclusion that these regions were inhabited from the middle of the third millennium BC by Indo-European people who spoke a Proto-Greek language. Hence, a part of this historical population later moved to Mycenae around 1600 BC and properly established the Mycenaean civilisation.