In the middle of a field in a lesser known part of Ireland is a large mound where sheep wander and graze freely. Had they been in that same location centuries ago, these animals might have been stiff with terror, held aloft by chanting, costumed celebrants while being sacrificed to demonic spirits that were said to inhabit nearby Oweynagat cave.
This monumental mound lay at the heart of Rathcroghan, the hub of the ancient Irish kingdom of Connaught. The former Iron Age center is now largely buried beneath the farmland of County Roscommon. In 2021, Ireland applied for UNESCO World Heritage status for Rathcroghan (Rath-craw-hin). It remains on the organization’s tentative list.
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Source: Inside the Irish ‘hell caves’ where Halloween was born
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