Tainan was the first city to be founded and developed in Taiwan. In 1624, the Dutch East India Company made Fort Zeelandia on the coast its base. With that Tainan began to be linked to the whole world. Until the close of the nineteenth century, Tainan was the key political, economic and cultural center of Taiwan. It is notable as the town with the longest cultural history in Taiwan. In 2024 Tainan marks its fourth centenary. To mark this occasion, Chunghwa Post has issued a souvenir sheet with two stamps, one valued at NT$8, the other at NT$28.The souvenir sheet is designed so as to portray the history of Tainan through representative buildings. In the background there is a color painting of Fort Zeelandia, superimposed on which, the left-hand stamp depicts Chihkan Tower, Koxinga Ancestral Temple, Tainan Theological College and Seminary, and Tainan Art Museum Building 1 (formerly Tainan Police Agency) which respectively illustrate the Dutch era, Koxinga’s Ming Dynasty, the Qing Empire and Japanese Rule. The right-hand stamp presents the Tainan Public Library (New Main Library) which symbolizes the current IT age. Taken as a whole the design shows how, as one regime followed another, Tainan has continued and remains open to a bright future. A folio, containing 8 stamps and 3 souvenir sheets, has been released along with the stamps. Combining history, culture, folk, art and ecology, the folio is certainly worth collecting.