How a Hoax on Wikipedia Changed a Country's History

This is my deep dive into how a hoax on a Wikipedia article changed a countries history, altered the perception of a pivotal event, and revived a long-dead medieval forgery for a brand new, digital audience. Despite being only 20 minutes long, this video took me nearly 3 years to make. I wrote the first draft on the 28th of November 2023, the 2nd on the 9th of March 2024, the 3rd and final draft on the 15th of February 2025, and have finally finished this video on the 24th of May 2026. It was intended to be the 24th video on my channel, it is now the 37th. Thank you for sticking around. Patreon:   / cambrianchronicles   Second Channel: ‪@CadwaladrYT‬ Chapters: 0:00 - The Battle of Orewin Bridge 2:08 - Wikipedia Discovery 4:35 - Famous Welsh Battles 8:31 - Llywelyn the Last 13:35 - Walter of Guisborough 16:16 - How a Hoax on Wikipedia Changed a Country’s History Sources: Beverley Smith, J. (2014). Llywelyn ap Gruffudd, Prince of Wales. 2nd ed. Cardiff: University of Wales Press, pp.561-566. Beverley Smith, Ll. (1982). The Death of Llywelyn ap Gruffydd: the Narratives Reconsidered. Welsh History Review, 11(2), pp.201-204. Geiriadur Prifysgol Cymru. Gruffudd ab yr Ynad Goch. Marwnad Llywelyn ap Gruffudd. Maund, K. (2006). The Welsh Kings. 3rd ed. The History Press Ltd, p.227. Parry, T., (1959). Dictionary of Welsh Biography. GRUFFUDD ab YR YNAD COCH (fl. 1280), poet. Warner, P. (1977). Famous Welsh Battles. Fontana, pp.99-100. ---------- Music courtesy of the YouTube Audio Library: Event Horizon - The Grey Room, Density & Time Stuck In The Air - The Tower of Light Nebula - The Grey Room, Density & Time Frame-Dragging - The Grey Room, Density & Time Red Shift - The Grey Room, Density & Time Down the Rabbit Hole - The Grey Room, Density & Time Fortress Europe - Dan Bodan ---------- Images of, and from: Stirling Bridge: Davidmeisner, Public domain, via Wikimedia Commons All other images are public domain, via the British Library, and Yale Center for British Arts.