Portopia '81

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You can help expand this article with text translated from the corresponding article in Japanese. (January 2023) Click [show] for important translation instructions. View a machine-translated version of the Japanese article. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Consider adding a topic to this template: there are already 1,261 articles in the main category, and specifying|topic= will aid in categorization. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Japanese Wikipedia article at [[:ja:神戸ポートアイランド博覧会]]; see its history for attribution. You may also add the template {{Translated|ja|神戸ポートアイランド博覧会}} to the talk page. For more guidance, see Wikipedia:Translation.

Portopia '81 (Japanese: 神戸ポートアイランド博覧会), also abbreviated "Portopia", was an exhibition in Japan held at Port Island and March 20 - September 15, 1981.^[1]

Its theme was "Creation of a New Cultural City on the Sea". Portopia was organized to commemorate the opening of Port Island. It was visited by over 16 million people.^[2][3][4]