I would argue that the claim that "No one knows the origin of Ulster’s ‘Red Hand’" is somewhat inaccurate. The wikipedia page[1] covers a lot of its history.

I would argue that the claim that "No one knows the origin of Ulster’s ‘Red Hand’" is somewhat inaccurate. The wikipedia page[1] covers a lot of its history. Because it's very old, dating back to at least the European dark ages, the initial origin is fuzzy indeed but there's a long historical record of its use. It clearly pre-dates the Normans in Ireland. [1] https://en.wikipedia.org/wiki/Red_Hand_of_Ulster https://en.wikipedia.org/wiki/Red_Hand_of_Ulster