Social history can be closely related to cultural and environmental history, and classes are often a historical science subdiscipline that emerges as an attempt to better understand marginalized social groups. Studies often include strategies to analyze various communities, cultures and social classes.

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.