British or Irish reached remote islands before Vikings
People from Britain or Ireland may have reached the remote Faroe Islands before the Vikings. …
According to Medieval texts, the early Irish navigator St Brendan set out across the Atlantic with comrades from 512 to 530, and supposedly found a land dubbed the Isle of the Blessed. Later, in 825 AD, the Irish monk Dicuil wrote that some northern islands had been settled by hermits for at least 100 years.