Túath

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Túath is an Old Irish word for the basic political unit of Gaelic Ireland. It can mean the people who lived in a territory as well as the land itself. The smallest túath was about the size of a later Irish barony (around 177 square miles). More powerful kings ruled over two or more túatha.

In ancient times, a household was about 30 people. A trícha cét, meaning 100 dwellings, was roughly 3,000 people. A túath consisted of several trícha céta, so it contained at least about 6,000 people and probably around 9,000 or more.

Each túath was a self-contained unit with its own executive, assembly, courts, and defence force. Túatha formed confederations for mutual defence, and there was a hierarchy of statuses based on location and connections to ruling dynasties. Their organization is described in the Brehon laws, written down in the 7th century as the Fénechas.

The old political system began to change after the Elizabethan conquest, gradually giving way to baronies and counties under the colonial system. Over time, there has been confusion about trícha céta and túatha, and their exact boundaries are not always clear. Trícha céta were mainly for counting military capacity; some scholars equate túath with a modern parish, others with a barony. In areas like Ulster, large-scale colonisation makes the original divisions harder to recover. Often, baronies follow the old túath boundaries, and bog finds along these borders suggest these territorial lines have endured since at least the Iron Age.

The word túath means “the people,” “the country/territory,” and “the petty kingdom.” It likely comes from Proto-Celtic *toutā and is related to the Gaulish god Toutatis. In Modern Irish, tuath (without the fada) usually means rural districts or the countryside, but the historical sense is still understood.