Bulgarian Workers Union was created in 1935.
Bulgarian Football Union was created in 1923.
Bulgarian Social Democratic Workers' Party was created in 1894.
Bulgarian Agrarian National Union was created in 1899.
Workers' Union was created in 1898.
Australian Workers' Union was created in 1894.
Antigua Workers' Union was created in 1967.
Union of Djibouti Workers was created in 1992.
Christian Workers' Union was created in 1963.
Union of Russian Workers was created in 1908.
Workers' Union of Ireland was created in 1924.
Free Workers' Union was created in 1977.
Telecommunications Workers Union was created in 1944.