[Fred Nerks]

"...The Atlantic Ocean sent its waters along the Scottish and Norwegian shores, and also through the Channel that had been formed only a short while before. Human artifacts and bones of land animals were dredged from the bottom of the North Sea; and along the shores of Scotland and England, as well as on the Dogger Bank in the middle of the sea, stumps of trees with their roots still in the ground were found. Forty-five miles from the coast, from a depth of thirty-six metres, Norfolk fishermen drew up a spearhead carved from the antler of a deer, embedded in a block of peat. This artifact dates from the Mesolithic or early Neolithic Age and serves as one of many proofs that the area covered by the North Sea was a place of human habitation not many thousands of years ago. From the analysys of the pollens found in the peat taken from the bottom of the sea, the conclusion was reached that thse forests existed in not too remote times. It has also been assumed that the building of large areas of the North Sea in the Subboreal period resulted from a rather sudden sinking of the land, which some authorities date at about 1500 B.C."

Source: Earth In Upheaval. by Immanuel Velikovsky.

[SunkenCiv]

The Sinking Lands, which lay to the west of Britain (between Britain and Ireland) are mentioned in the Mabinogeon; the stumps of apparently suddenly submerged forests have been found off Wales. Also, most are familiar with Lyonnesse. Winnie Churchill's history of, hmm, Britain mentions the submerged forests and whatnot and that the North Sea floor was once dry land. (':

And much smaller events of this kind have taken place historically, here and there:

Clare Places: Islands: Mutton Island or Enniskerry (9th century catastrophe in Ireland)
Clare County Library | prior to November 19, 2005 | staff writer
Posted on 11/18/2005 2:58:58 PM EST by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1524751/posts

[snip]

According to the "Annals of the Four Masters" the island was once called Fitha Island and it formed part of the mainland until the day "the sea swelled so high that it burst its boundaries, overflowing a large tract of country, and drowning over 1,000 persons." This happened on March 16th, 804. Some reports describe it as an earthquake, others as a tidal wave when "the sea divided the island of Fitha into three parts." These three islands are Mutton Island, Inismattle (or Illanwattle) and Roanshee (or Carrig na Ron). There is a fourth island in the area called Carraig Aolacan.

[unsnip]