Fort Provintia or Providentia was a Dutch outpost on Formosa at a site now located in the West Central District of Tainan in Taiwan. It was built in 1653 during their colonization of Taiwan. The fort was surrendered to Koxinga and later destroyed by an earthquake in the 19th century. It was rebuilt as Sakam or Chihkan Tower (Chinese: 赤崁樓, p Chìkǎnlóu, w Ch'ih4-k'an3 Lou2; Hokkien: poj Chhiah-khám-lâu) afterwards. Its name derives from the Taiwanese aboriginal village recorded by the Dutch as "Chaccam," "Sakam," "Zaccam," etc.