Early issues of postage stamps of the Republic of China were often inscribed exclusively in Chinese. Even those that were related to international organizations. However, later the name of the country began to be printed in English. When the Nationalists fled the mainland, they took with them many of Beijing's art treasures, which later became a rich source of inspiration for postage stamp designers. In the 1960s and 1980s, many stamps reflected Taiwan's siege mentality, but in the less tense atmosphere of recent years, the emphasis has shifted to nostalgia, such as the vintage railroad series. In addition, interest in depicting works of art and national cultural phenomena, such as puppet theater, folk tales and children's games, has returned.