site.btaObservances: March 25

The world: 

- International Day of Solidarity with Detained and Missing Staff Members of the United Nations (marked since 2010 on initiative of UN Secretary-General Ban Ki-moon);

- International Day of Remembrance of the Victims of Slavery and the Transatlantic Slave Trade (marked since 2008 by UN General Assembly resolution of December 17, 2007);

- National Day of Greece: Independence Day (1821, from Ottoman Empire); 

On this date in Bulgarian history:

1924: First Social Insurance Act is gazetted.

1971: Petrochemical Works near Pleven (North Central Bulgaria) inaugurated (privatized as Plama in 1996, bankrupt since 1998, removed from Commercial Register on April 16, 2014).

1977: Diplomatic relations established with Guyana.

2008: Bulgaria prepays six World Bank loans of EUR 266.9 million plus USD 12.8 million, including interest. 

2009: Bulgarian Public Relations Confederation is set up.