Tangasseri was associated with the Chinese trade from the first millennium AD and later colonised by the Portuguese, Dutch and the British to become the "gold village". According to Historians, Captain Rodriguez came to Quilon and was appointed as the captain of the factory and trade, with permission from the queen. St.Thomas Fort (once known as Fortaleza da São Tomé) was built by the Portuguese under Afonso de Albuquerque for the protection of the newly developed trade. In 1505 the Portuguese established a trading port here, and in 1518 established its sovereignty through the construction of Fort St. Thomas. Later in 1661 the town and the fort were handed over to the Dutch who made it the capital of Dutch Malabar. The Dutch occupied the fort for several years. In 1795, the British East India Company took possession of the fort. In 1823 Fort St. Thomas accepted a lease by Travancore from the British Government for a period of twenty years.Fort St. Thomas was originally around 20 feet (6.1 m) tall. Today, the remains of the fort, popularly known as "Tangasseri fort" remain facing the beach. The government of India has taken over the fort and it is being considered an historical landmark. Restoration of the fort is ongoing. At present, the fort is managed by the Archaeological Survey of India