site.btaObservances: September 12

The world:

• International Day for South-South Cooperation.

On this date in Bulgarian history:

• 1924: Sofia's St Alexander Nevsky Memorial Cathedral is consecrated.
• 1945: Higher Air Force School is established in Sofia. Moves to Vrazhdebna in 1946, then to Dolna Mitropolia in 1948. 
• 1947: First international air service, between Sofia and Budapest, is launched. 
• 1959: Diplomatic relations with Japan, severed on November 6, 1944, are restored. 
• 1997: Ferry service linking Burgas with Novorossiysk (Russia) and Poti (Georgia) goes into operation.