States Army issues an order for the abandonment of Fort Kearny, Nebraska. March 26 – The Paris Commune is formally established in France. March 27 – The first Rugby Union International results in a 1–0 win, by Scotland over England. March 29 The first Surgeon General of the United States (John Maynard Woodworth) is appointed. The Royal Albert Hall in London is opened by Queen Victoria; it incorporates a grand organ by Henry Willis & Sons, the world's largest at this time. April–June April – The Stockholms Handelsbank is founded. April 4 – The New Jersey Detective Agency is chartered, and the New Jersey State Detectives are initiated. April 10 – In Brooklyn, New York, P.T. Barnum opens his three-ring circus, hailing it as "The Greatest Show on Earth". April 20 – U.S. President Ulysses S. Grant signs the Civil Rights Act of 1871. April 24 – Servant girl Jane Clouson is murdered in Eltham, England. May 4 – The first supposedly Major League Baseball game is played in America. May 8 – The first Major League Baseball home run is hit by Ezra Sutton, of the Cleveland Forest Citys. May 10 – The Treaty of Frankfurt is signed, confirming the frontiers between Germany and France. The provinces of Alsace and Lorraine are transferred from France to Germany. May 11 – The first trial in the Tichborne case begins, in the London Court of Common Pleas. May 21 French government troops enter Paris to overthrow the Commune, beginning "Bloody Week" (Semaine sanglante). The first rack railway in Europe, the Vitznau–Rigi Railway on Mount Rigi in Switzerland, is opened. May 27 – French government troops massacre 147 Communards from Belleville, at Père-Lachaise Cemetery in Paris. May 28 – Paris Commune falls to French government forces. June 1 – Bombardment of the Selee River Forts: Koreans attack two United States Navy warships. June 10 – United States expedition to Korea: Captain McLane Tilton leads 109 members of the United States Marine Corps in a punitive naval attack on the Han River forts on Ganghwa Island in Korea, resulting in 250 Koreans dying and diplomatic failure to "open up" Korea. June 18 – The Universities Tests Act 1871 removes restrictions limiting access to Oxford, Cambridge and Durham universities to members of the Church of England. June 29 – Trade unions are legalized in the United Kingdom by the Trade Union Act 1871. July–September