Province of the Azores sub-prefects. The Province of the Azores was abolished on 28 June 1833 by Decree 64, which divided the archipelago into two separate provinces: the Província Oriental dos Açores (Eastern Province of the Azores), that included the islands of São Miguel and Santa Maria, with its capital in Ponta Delgada; and the Província Ocidental dos Açores (Western Province of the Azores), with its capital in Angra and administrating the remaining islands of the archipelago. Prefect: Sub-Prefect of Ponta Delgada: Sub-Prefect of Horta: Province of the Azores The Province of the Azores was an administrative unit of Portugal encompassing the archipelago of
Azores caldeira", the noted hot springs grotto. In 1869, the author Mark Twain published "The Innocents Abroad", a travel book, where he described his time in the Azores. The first reference to the island of São Jorge was made in 1439 but the actual date of discovery is unknown. In 1443 the island was already inhabited but active settlement only began with the arrival of the noble Flemish native "Wilhelm Van der Haegen". Arriving at Topo, where he lived and died, he became known as "Guilherme da Silveira" to the islanders. João Vaz Corte-Real received the captaincy of the island in