Of volcanic origin, the islands of Saint Helena, Ascension Island, and Tristan da Cunha were all formerly separate colonies of the English crown, though separately discovered by several Portuguese explorers between 1502 and 1504.
De orixe volcánico, as illas de Santa Helena, Illa de Ascensión e Tristan da Cunha foron todas colonias separadas da coroa inglesa, aínda que descubrironse por separado por varios exploradores portugueses entre 1502 e 1504.