site.btaToday's Observances: September 28
- World Rabies Day.
- International Right to Know Day.
On this date in Bulgarian history:
1960: Diplomatic relations established with Somalia.
1962: Diplomatic relations established with Sierra Leone.
1987: More than 300 people stage a rally in Ruse, unprecedented in the communist era. They protest against the authorities' indifference to the chlorine pollution of the city's air by the chemical works in Giurgiu, Romania.
1990: Sofia Airport joins the International Civil Airports Association.
1992: Bulgaria signs the 1990 Council of Europe Convention on Laundering, Search, Seizure and Confiscation of the Proceeds from Crime.
2012: Bulgaria establishes diplomatic relations with South Sudan.