This fascinates me in all sorts of ways, reading their short history makes one see clearly how narrow is the viewpoint of many older nations. By the by from a layman’s viewpoint it certainly seems like the claim of sovereignty has some basis.
The history of Sealand is a story of a struggle for liberty. Sealand was founded on the principle that any group of people dissatisfied with the oppressive laws and restrictions of existing nation states may declare independence in any place not claimed to be under the jurisdiction of another sovereign entity. The location chosen was Roughs Tower, an island fortress created in World War II by Britain and subsequently abandoned to the jurisdiction of the High Seas. The independence of Sealand was upheld in a 1968 British court decision where the judge held that Roughs Tower stood in international waters and did not fall under the legal jurisdiction of the United Kingdom. This gave birth to Sealand’s national motto of E Mare Libertas, or “From the Sea, Freedom”.