The province of Pisa () is a province in the Tuscany region of central Italy. Its capital is the city of Pisa. With an area of and a total population of 421,642 (), it is the second most populous and fifth largest province of Tuscany. It is subdivided into 37 comuni. With a history that dates to the Etruscans and Phoenicians, the province achieved considerable power and influence in the Mediterranean in the 12th and 13th centuries. Pisa, the provincial capital, is known for its Leaning Tower, and other historic landmarks that attract tourists. History The area has a long maritime history dating back to the Etruscans, the Phoenicians and the Gauls. Under the Roman Empire, it was responsible for naval battles against the Ligurians, Gauls and Carthaginians, becoming a Roman colony in 180 B.C. and gaining further colonial independence under Julius Caesar. Thanks to its complex river system, with the fall of the Roman Empire, Pisa did not suffer unduly and was able to combat Saracen pirates. In 828, it launched an expedition against the north African coast while in 871, Pisan troops helped to defend Salerno from the Moors. In the 11th century, Pisa became a republic, reaching its zenith in the 12th and 13th centuries when its navy controlled the western Mediterranean. As a Maritime Republic, its power extended well beyond the Italian peninsula. After first being an ally then a rival of the Republic of Genoa, it suffered defeat at the Battle of Meloria in 1284. As a result, it began to decline and in 1406 was annexed to Florence, becoming part of the Grand Duchy of Tuscany in the 16th century. In the 20th century, Pisa was hit hard by allied bombing and Nazi reprisals. The current province descends from the Grand Duchy, while its territories are part of the former Maritime Republic of Pisa. In 1925, the municipalities of Bibbona, Campiglia Marittima, Castagneto Carducci, Cecina, Collesalvetti, Piombino, Rosignano Marittimo, Sassetta, and Suvereto were transferred to the Province of Livorno, and at the same time the municipalities of Castelfranco di Sotto, Montopoli in Val d'Arno, San Miniato, Santa Croce sull'Arno, and Santa Maria a Monte were acquired by the Province of Florence. In 1938, the comune of Castellina Marittima bought a small slice of the territory of the municipality of Cecina, part of the province of Livorno, which was attributed to an administrative error. Geography