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;
Umbrella Movement support the movement), Sham Shui Po, Kwai Shing East, Tai Wai, Tuen Mun, Chai Wan, Kwun Tong and other places. New campus of University of Macau, which is located on Zhuhai was hung with banner "Macau also need real universal suffrage" ["sic"], similar that of Hong Kong Umbrella Revolution, for echoing the street protests in the occupied territories of Hong Kong. Rallies in support of the protests occurred in over 64 cities worldwide by October 2014, principally in front of Hong Kong trade missions or Chinese consulates. A demonstration in front of the Chinese embassy in London attracted 3000 participants.