When was Greece invented?

Answer 1

Greece is a country, and was not invented.

The first (proto-) Greek-speaking tribes, known as the Mycenaeans, are generally thought to have arrived in the Greek mainland between the late 3rd and the first half of the 2nd millennium BC - probably between 1900 and 1600 BC. When the Mycenaens invaded there were various non-Greek-speaking, indigenous pre-Greek people already living on the Greek mainland and practicing agriculture, as they had done since the 7th millennium BC.