description Ruy Faleiro Overview
Ruy Faleiro, also known as Rui Faleiro, was a Portuguese cosmographer and astrologer involved in planning the Spanish expedition led by Ferdinand Magellan. He contributed technical knowledge concerning navigation, longitude, and the location of the antimeridian dividing Spanish and Portuguese spheres under the Treaty of Tordesillas. Although originally expected to join the voyage, he did not sail when the fleet departed Spain in 1519.
help Ruy Faleiro FAQ
Who was Ruy Faleiro?
Ruy Faleiro, also called Rui Faleiro, was a Portuguese cosmographer and astrologer involved in planning the Spanish expedition led by Ferdinand Magellan. His role was connected to navigation and the technical planning of the voyage.
What did Ruy Faleiro contribute to Magellan's expedition?
Faleiro contributed technical knowledge about navigation, longitude, and the antimeridian. These issues mattered because Spain and Portugal divided overseas claims using geographic lines that were difficult to locate precisely at sea.
What is the antimeridian in Ruy Faleiro's work?
The antimeridian is the line opposite a chosen meridian on the globe. In the context of the Magellan expedition, locating it helped address the boundary between Spanish and Portuguese spheres of expansion.
Was Ruy Faleiro a ship captain?
His known role was that of a cosmographer and astrologer rather than the expedition's principal captain. He helped with the technical planning of Magellan's Spanish-backed voyage.
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