Flat Holm Light House became operational on 25th March 1738.
Flat Holm is a limestone island lying in the Bristol Channel and contains Wales' most southerly point.
A timeline history for Flat Holm;
* The island has a long history of occupation from Anglo-Saxon and Viking times.
* It was visited by disciples of Saint Cadog in the 6th century.
* In 1835 it was the site of the foundation...
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