Note: Do not rely on this information. It is very old.
Iona
Iona, or Icolmkill, the first seat of Christianity in Britain, is a small island of the Hebrides group.
It was originally a seat of the Druids, who were in 565 converted or expelled by St. Colomb. It is three miles long and one broad, and belongs to the parish of Ross in Mull.