Ireland is an island to the northwest of continental Europe. It is the third-largest island in Europe and the twentieth-largest island on Earth. To its east is the larger island of Great Britain, from which the Irish Sea separates it.

A Doctorate of Philosophy, or PhD, may require eight years or more to complete, as well as a dissertation. In most fields, the possession of a PhD qualifies the holder to become a professor of a chosen subject. There are many different programs available.