570 AD — Iona, Scotland
Seven years before the last day, the sea will submerge Ireland in one great flood. This is the mercy of God — so that the Irish will be spared the horrors of the Antichrist and the final tribulation.
Irelandseafloodseven yearsAntichristmercy
Catholic Prophecy (Edward Connor) / Irish hagiographical tradition
by St. Columba