with Salyut 1. An estimated 200,000 people in Washington, D.C. and a further 125,000 in San Francisco march in protest against the Vietnam War. April 25 Todor Zhivkov is reelected as the leader of the Bulgarian Communist Party. Franz Jonas is reelected as president of Austria. April 26 – The government of Turkey declares a state of siege in 11 provinces, including Ankara, in response to violent demonstrations. April 30 The Milwaukee Bucks sweep the Baltimore Bullets in four games to win their first NBA championship. May May 1 Amtrak begins intercity rail passenger service in the United States. The Ceylonese government promises amnesty for guerillas who surrender before May 5. May 2 – In Ceylon, left-wing guerillas launch a series of assaults against public buildings. May 3 Arsenal F.C. wins the English League First Division championship at the home of their bitter rivals Tottenham Hotspur, with Ray Kennedy scoring the winner. (Arsenal will go on to win the league and cup 'double' six days later by defeating Liverpool in the FA Cup final). The Harris Poll finds that 60% of Americans are against the Vietnam War. East German leader Walter Ulbricht resigns as Socialist Unity Party leader but retains the position of head of state. 1971 May Day Protests: Anti-war militants attempt to disrupt government business in Washington, D.C.; police and military units arrest as many as 12,000, most of whom are later released. May 5 – The U.S. dollar floods the European currency markets and especially threatens the Deutsche Mark; the central banks of Austria, Belgium, Netherlands and Switzerland stop the currency trading. FedEx, the logistics and delivery service, founded in Little Rock, Arkansas, United States. May 6 – The government of Ceylon begins a major offensive against the People's Liberation Front. May 9 Arsenal FC beats Liverpool F.C. 2–1 to win the English FA Cup, thus completing the league and cup 'double'. Mariner 8 fails to launch. May 12 – An earthquake in Turkey destroys most of the city of Burdur. May 15 – Israeli ambassador to Turkey Efraim Elrom is kidnapped; he is found killed in Istanbul May 25. May 16 – A coup attempt is exposed and foiled in Egypt. May 18 The U.S. Congress formally votes to end funding for the American Supersonic Transport program. The Montreal Canadiens win the Stanley Cup against the Chicago Black Hawks. The Canadiens became only the second team