Tagus

The Tagus (Spanish: Tajo [ˈtaxo]; Portuguese: Tejo [ˈtɛʒu]; Latin: Tagus; Ancient Greek: Τάγος Tagos) is the longest river on the Iberian Peninsula. It is 1,038 km (645 mi) long, 716 km (445 mi) in Spain, 47 km (29 mi) along the border between Portugal and Spain and 275 km (171 mi) in Portugal, where it empties into the Atlantic Ocean near Lisbon. It drains an area of 80,100 square kilometers (30,927 sq mi) (the second largest in the Iberian peninsula after the Douro). The Tagus is highly utilized for most of its course. Several dams and diversions supply drinking water to most of central Spain, including Madrid, and Portugal, while dozens of hydroelectric stations create power. Between dams it follows a very constricted course, but after Almourol it enters a vast alluvial valley prone to flooding. At its mouth is a large estuary on which the port city of Lisbon is situated.

The source of the Tagus is the Fuente de García, in the Frías de Albarracín municipal term, Montes Universales, Sistema Ibérico, Sierra de Albarracín Comarca. All its major tributaries enter the Tagus from the right (north) bank. The main cities it passes through are Aranjuez, Toledo, Talavera de la Reina and Alcántara in Spain, and Abrantes, Santarém, Almada and Lisbon in Portugal.

Tagus (title)

Tagus (Ancient Greek: τᾱγός, τάγης) was a Thessalian title for a leader or general, especially the military leader of the Thessalian League. When occasion required, a chief magistrate was elected under the name of Tagus, whose commands were obeyed by all the four districts of Thessaly (Phthiotis, Thessaliotis, Histiaeotis, Pelasgiotis). He is sometimes called king ("basileus", Herodotus, V.63), and sometimes "archon" (Dionysius. V.74). Accordingly, Pollux (I.128), in his list of military designations, classes together the Boeotarchs of the Thebans, the Kings of Sparta, the Polemarchs of the Athenians, (in reference to their original duties), and the Tagoi of the Thessalians. When Jason of Pherae was Tagus, he had an army of more than 8000 cavalry and not less than 20,000 hoplites. When Thessaly was not united under a Tagus, the subject towns possessed more independence. Philip II of Macedon and his son Alexander the Great exercised control over Thessaly as elected Tagoi. In later times some states called their ordinary magistrates "Tagoi".