Todor Zhivkov to 1988, Bulgaria won an unprecedented 153 Olympic medals and numerous European and world competitions in sports as diverse as volleyball, rhythmic gymnastics and wrestling. Dissent was punished under Zhivkov's rule. The CSS was a feared tool of control, and overt opposition largely stayed underground until the late 1980s. In 1978, the Bulgarian dissident Georgi Markov was assassinated in London by an agent who stabbed him with an umbrella tip which implanted a very small ricin ball. According to former KGB general Oleg Kalugin, this was requested by Zhivkov and either performed by the KGB or it assisted the CSS;
Sackville Street, London Sackville Street, London Sackville Street is a street in central London which today is mainly composed of offices and the rears of retail premises, but once was the home to several important medical figures. The street runs between Vigo Street in the north and Piccadilly in the south. It has no other exits. The land on which Sackville Street stands, like Albany and Burlington House, was formerly known as Stone Conduit Close. It was bounded on one side by Penniless Bank and on the other by Swallow Close. It passed into Crown ownership in 1536 and formerly belonged to the