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João da Nova, a Galician navigator serving the Portuguese Empire, was the first person to sight Saint Helena.. According to long-established tradition, the island was sighted on 21 May 1502 by the four ships of the 3rd Portuguese Armada, commanded by João da Nova, a Galician navigator in the service of Portugal, during his return voyage to Lisbon, who named it Santa Helena after Saint Helena ...
Saint Helena, named after St Helena of Constantinople, is an island of volcanic origin in the South Atlantic Ocean. It is part of the British overseas territory of Saint Helena, Ascension and Tristan da Cunha [1] which also includes Ascension Island and the islands of Tristan da Cunha. Saint Helena measures about 16 by 8 kilometres (10 by 5 mi ...
Enlargeable, detailed map of Saint Helena. St. Helena exists because of the St. Helena hotspot which began to produce basaltic lava about 145 million years ago when it was near the constructive plate margin of the Mid-Atlantic Ridge. The movement of the African Plate away from the hotspot has left the chain of the St. Helena seamounts, which ...
Topographic map of Saint Helena by Barry Weaver and Jean-Pierre Langer; Saint Helena Island, a photograph by NASA Earth Observatory; Author: Oona Räisänen : Other versions: Derivative works of this file: Topographic map of Saint Helena-fr.svg; Topographic map of Saint Helena-mk.svg; Topographic map of Saint Helena-de.svg
The St Helena, Ascension and Tristan da Cunha Constitution Order 2009 (an Order in Council of the Privy Council of the United Kingdom) enacted a new constitution for the territory, which came into effect on 1 September 2009, and elevated Ascension Island and Tristan da Cunha from being dependencies of Saint Helena to equal constituent parts.
Modified Mysid's topographic map (Topographic map of Saint Helena-en.svg) in Inkscape. Based on several sources: CGIAR-CSI SRTM 90m DEM Digital Elevation database; SRTM30_PLUS bathymetry by Scripps Institution of Oceanography; Topographic map of Saint Helena by Barry Weaver and Jean-Pierre Langer; Saint Helena Island, a photograph by NASA Earth ...
Mountain or hill Height Island Notes Sandy Bay Ridge: 747 metres (2,451 ft) Saint Helena: Sea-hen Crag: 710 metres (2,330 ft) Gough Island: High Hill: 707 metres (2,320 ft)
The composites are mostly herbaceous, but on St. Helena evolved woody into woody trees and shrubs. The native composite trees and shrubs include species of Pladaroxylon, Lachanodes, Commidendrum, Melanodendron, and Petrobium. [3] Native plants are now limited to a few sheltered and inaccessible locations, including a small gumwood stand at Peak ...