The Tamoios Indians were the former occupants of the territories where Cabo Frio is currently located, which were later occupied by the French, who founded the São Mateus fort in the area.
They remained there until 1615, when they were expelled by the Portuguese.
It was when Constantine de Menelau founded the current city with the name of Santa Helena.
The city was developed based on agricultural exploitations, and became a city in the year 1815.
At the beginning of the 20th century, it was when its development grew, with the benefit of the salt industry in the region.
Starting in the 1950s, Cabo Frio grew in its tourist exploitation, thanks to its excellent beaches, and the quiet environment of the city.
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