Irish origin myths confirmed by modern scientific evidence
One of the oldest texts composed in Ireland is the Leabhar Gabhla, the Book of Invasions. It tells a semi-mythical history of the waves of people who settled in Ireland in earliest time. It says the first settlers to arrive in Ireland were a small dark race called the Fir Bolg, followed by a magical super-race called the Tuatha de Danaan (the people of the goddess Dana).
Most interestingly, the book says that the group which then came to Ireland and fully established itself as rulers of the island were the Milesians – the sons of Mil, the soldier from Spain. Modern DNA research has actually confirmed that the Irish are close genetic relatives of the people of northern Spain.
While it might seem strange that Ireland was populated from Spain rather than Britain or France, it is worth remembering that in ancient times the sea was one of the fastest and easiest ways to travel. When the land was covered in thick forest, coastal settlements were common and people travlleled around the seaboard of Europe quite freely.