"Union Day" on April 26 in Tanzania, commemorating the unification of Zanzibar and Tanganyika in 1964
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"Great Union Day" on December 1, also known as "Unification Day", the national holiday of Romania
Soviet Union | European Union | Union Army | rugby union | Union | The Church of Jesus Christ of Latter-day Saints | Green Day | International Telecommunication Union | trade union | One Day International | Union (American Civil War) | New Year's Day | Boxing Day | Union Pacific Railroad | Memorial Day | England national rugby union team | Seventh-day Adventist Church | Labor Day | American Civil Liberties Union | Wales national rugby union team | New Zealand national rugby union team | Doris Day | Ireland national rugby union team | Earth Day | May Day | Western Union | Scotland national rugby union team | International Astronomical Union | Sandra Day O'Connor | Georgia national rugby union team |