During the "War of Gaul", Julius Caesar noticed the position of the city and did undertake major projects including the creation of a market that was then called Forum Julii. The name of the market eventually cover the whole city and, by successive transformations (Forum Julii, Frejuls, Frejus), gave the present name.
The emperor Augustus gave great importance to Frejus, including establishing the Colonia Octaviorum (a kind of "retirement home" veterans of the eighth legion) and even enlarging the port, where he installed vessels Marc-Antoine caught Actium. Forum Julii became a naval bases of the military fleet Roman Mediterranean. From this reign date the construction of all major equipment that still remains today: amphitheatre, water, lighthouse, spas, etc..
Fréjus is classified as "city of art and history." The city is it the quality of the remains that were discovered. The amphitheatre-shaped ellipse, built in the 1st century, measured 113 meters long and 85 meters wide. It could contain between 10 000 and 12 000 spectators. The amphitheatre of Frejus is a small device constructed of sandstone Green fired a career close. Its central arena measure 68 metres by 39. This building is historic monument since 1840.
The aqueduct, built in the 1st century, providing water for the town of Frejus. With a length of approximately 40 km, most of its route was underground. The arches that remain in our time have been classified a historical monument in 1886.
Finally, the Episcopal group, comprising, in addition to the Cathedral Sainte Léonce, a former Episcopal palace (the Tour Riculphe), a baptistery (among the oldest in France), and a cloister with a room is now reserved for municipal archaeological museum.
This is not forgotten in Frejus, as the city shows a particular dynamism which makes it one of the largest cities of Var. In addition to a downtown pleasant and elegant, Fréjus has a very impressive leisure base of 120 hectares, located on the seafront, which represents the largest public park in the east Varois.
Finally, remember that on 2 December 1959, the city was dramatically affected by the disaster resulting from the breakdown of the dam of Malpasset, who made more than 400 dead. The city was assisted by issuing a stamp surcharge, Marianne the nave overloaded.