Short answer
Lyonesse is the drowned land of Arthurian Cornwall, lost to the sea between tides and tales. Church bells under the waves - Celtic elegy as geography. Later retellings keep adding witnesses, theories, or pop-culture twists - which is why Lyonesse still pulls curious readers back in.
What it is
Lyonesse is the drowned land of Arthurian Cornwall, lost to the sea between tides and tales. Church bells under the waves - Celtic elegy as geography. Keep the dig reports and the daydreams on separate shelves.
Mainstream view
Scholars describe Lyonesse using archaeology, philology, or history of ideas rather than confirming lost high-tech empires.
Alternative claims
Alternative literature claims Lyonesse proves suppressed advanced knowledge or a lost homeland.
Evidence and consensus
Mainstream history and archaeology treat Lyonesse according to verified sites, texts, or museum objects where they exist; lost-continent and ancient-astronaut overlays remain unproven.
Timeline
From first mentions to modern arguments about Lyonesse.
FAQ
Quick answers to the questions people ask first about Lyonesse.
Sources
Excavation reports, translations, and critical histories.