site.btaObservances: September 15

The world:

- National Day of Costa Rica. Independence Day (1821);

- National Day of Guatemala. Independence Day (1821);

- National Day of Salvador. Independence Day (1821);

- National Day of Nicaragua. Independence Day (1821);

On this date in Bulgarian history:

1946: 28th Ordinary National Assembly proclaims Bulgaria People's Republic, based on results of referendum on abolition of monarchy, held on September 8, 1946. Vassil Kolarov is elected interim Chairman of People's Republic.

1947: Allies' Treaty of Peace with Bulgaria, signed in Paris on February 10, 1947, enters into force.

1971: Diplomatic relations are established with Equatorial Guinea at embassy level.

1992: Bulgarian Foreign Minister Stoyan Ganev is elected President of 47th UN General Assembly Session.

1999: In Sofia, Bulgaria and Kazakhstan sign intergovernmental Agreement on Reciprocal Encouragement and Protection of Investments.