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Maritime: 'The Battle of Leghorn, 4 March 1653'. Oil on canvas painting by Willem Hermansz van Diest (c. 1600-1678), mid-17th century. The naval Battle of Leghorn (the Dutch call the encounter by the Italian name Livorno) took place on 14 March (4 March Old Style) 1653, during the First Anglo-Dutch War, near Leghorn (Livorno), Italy. It was a victory of a Dutch fleet under Commodore Johan van Galen over an English squadron under Captain Henry Appleton. Afterward an English fleet under Captain Richard Badiley, which Appleton had been trying to reach, came up but was outnumbered and fled.
The Catalan Atlas (1375) is the most important Catalan map of the medieval period. It was produced by the Majorcan cartographic school and is attributed to Cresques Abraham, a Jewish book illuminator who was self-described as being a master of the maps of the world as well as compasses. It has been in the royal library of France (now the Bibliotheque nationale de France) since the late 14th century.
Bolinus brandaris (originally called Murex brandaris by Linnaeus), and commonly known as the purple dye murex or the spiny dye-murex, is a species of medium-sized predatory sea snail, an edible marine gastropod mollusk in the family Muricidae, the murex snails or the rock snails.<br/><br/> Tyrian purple (Greek, πορφύρα, porphyra, Latin: purpura), also known as royal purple, imperial purple or imperial dye, is a purple-red natural dye, which is a secretion produced by certain species of predatory sea snails in the family Muricidae, a type of rock snail by the name Murex. This dye was probably first used by the ancient Phoenicians. The dye was greatly prized in antiquity because the color did not easily fade, but instead became brighter with weathering and sunlight.<br/><br/> Tyrian purple was expensive: the 4th-century-BC historian Theopompus reported, 'Purple for dyes fetched its weight in silver at Colophon' in Asia Minor. The expense meant that purple-dyed textiles became status symbols, and early sumptuary laws restricted their uses. The production of Tyrian purple was tightly controlled in Byzantium and was subsidized by the imperial court, which restricted its use for the colouring of imperial silks, so that a child born to a reigning emperor was styled 'porphyrogenitos' or 'born in the purple'.