Blood of the Irish The Blood in Irish veins is Celtic, right? Well, not exactly. Although the history many Irish people were taught at school is the history of the Irish as a Celtic race, the truth is much more complicated, and much more interesting than that ...Research done into the DNA of Irish males has shown that the old Anthropological attempts to define 'Irish' have been misguided. As late as the 1950s researchers were busy collecting data among Irish people such as hair colour and height, in order to categorise them as a 'race' and define them as...