25 July 2026

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Unification Day celebrates the full union of Aquria and Catopolis following the personal union, which was between 26 December 2024 and 25 July 2025.

The personal union (the United Republics of Aquria-Catopolis or URAC) had the following major divisions: Two national districts, Aquria and Catopolis (often called countries, somewhat like the United Kingdom); and 22 regional districts (called districts in Aquria and provinces in Catopolis). The personal union had shared laws and other shared things benefitting both countries.

In July 2025, the government of the national district of Aquria requested to join the national district of Catopolis as a province. On 25 July 2025, the two came to an agreement, adopting the new Constitution. In doing so, they dissolved the United Republics.

By default, the name of the country would have been Catopolis, but the two countries both agreed to keep the Aquria, thereby making the country Aquria-Catopolis.

Today, Weur ure de Arma, the former anthem of the URAC was played in the capital, Catstontinople, in commemoration of the United Republics and in celebration of the unity between the two countries.