site.btaToday's Observances: March 20

The world:

- International Francophonie Day (since 1988);
- National day of Tunisia: Independence Day (1956);
- Earth Day (since 1971);
- World Social Work Day;
- International Happiness Day (since 2013). 

On this date in Bulgarian history:

1914: First sitting of the 17th National Assembly following the February 23 early parliamentary elections. The number of MPs is increased from 204 to 245.

1953: The opera in Plovdiv is unveiled. First performance given on November 15, 1953.

1995: Bulgaria signs a protocol establishing diplomatic relations with Saudi Arabia.

2008: Bulgaria recognizes Kosovo's independence.