Fir Bolg
Those who went to Greece became the Fir Bolg. The "Lebor Gabála Érenn" says that they were enslaved by the Greeks and made to carry bags of soil or clay, hence the name 'Fir Bolg' (men of bags). The "Cath Maige Tuired" says that they were forced to settle on poor, rocky land but that they made it into fertile fields by dumping great amounts of soil on it. After 230 years of slavery (or oppression), they leave Greece at the same time as the Israelites escaped from Egypt. In a great fleet, the Fir Bolg sail to Iberia and then to Ireland.