Florence is the capital city of the Italian region of Tuscany and of the province of Florence. It is the most populous city in Tuscany and has a population of 367,569. The city lies on the River Arno and is known for its history and its importance in the Middle Ages and in the Renaissance, especially for its art and architecture.
A centre of medieval European trade and finance, the city is often considered the birthplace of the Italian Renaissance; in fact, it has been called the Athens of the Middle Ages. It was long under the de facto rule of the Medici family. From 1865 to 1870 the city was also the capital of the Kingdom of Italy.
Florence was originally established by Julius Caesar in 59 BC as a settlement for his veteran soldiers. It was named Florentia and built in the style of an army camp with the main streets, the cardo and the decumanus, intersecting at the present Piazza della Repubblica. Situated at the Via Cassia, the main route between Rome and the north, and within the fertile valley of the Arno, the settlement quickly became an important commercial centre.
The Emperor Diocletian made Florentia the seat of a bishopric around the beginning of the 4th century AD. In the ensuing two centuries, the city experienced turbulent periods of Ostrogothic rule, during which the city was often troubled by warfare between the Ostrogoths and the Byzantines, which may have caused the population to fall to as few as 1,000 people. Peace returned under Lombard rule in the 6th century.
Conquered by Charlemagne in 774, Florence became part of the Duchy of Tuscany, with Lucca as capital. The population began to grow again and commerce prospered. In 854, Florence and Fiesole were united in one county.