site.btaObservances: August 29

The World:

- International Day against Nuclear Tests (established December 2, 2009 by UN General Assembly Resolution 64/35).

On this date in Bulgarian history:

866: Embassy of Bulgarian Tsar Boris I arrives in Rome, bringing 106 questions to Pope Nicholas I about teaching and discipline of Christian church (answered in "Responsa Nicolai ad Consulta Bulgarorum", written by Anastasius the Librarian).

1954: Soda Ash Plant at Devnya, Northeastern Bulgaria, goes into operation (sold to Belgian company Solvay and renamed Solvay Sodi in 1997).

1990: Bulgaria establishes regular diplomatic relations with NATO.