The earliest known Irish surname is O’Clery (O Cleirigh); it’s the earliest known because it was written that the lord of Aidhne, Tigherneach Ua Cleirigh, died in County Galway back in the year 916 ...

Do you know an O'Sullivan or O'Neill in your life? This apostrophe in surnames holds a deep meaning in the roots of Irish heritage. Read more to find out why this little grammar symbol is so important ...

The origins of some last names are pretty self-explanatory, whether it's Baker, Shepherd or even Rotten. But many surnames make no sense at all, at least not to the average Joe without a degree in Old ...

In most societies, surnames are passed on from father to son, just like the Y chromosome. This suggests that men who share the same surnames may have Y chromosomes that are related to one another. A ...