the major parties have picked their nominees for president and vice president. The result will not be certified until February, 1801. April 6 – War of the Second Coalition: Siege of Genoa – General André Masséna is surrounded by 40,000 Austrian troops under Field Marshal Michael von Melas and blockaded by a strong British squadron under Lord Keith. April 24 – The U.S. Library of Congress is founded in Washington, D.C. May 14 – Second Coalition: French forces under General Louis-Alexandre Berthier are halted by 400 Austro-Piedmont soldiers, at Fort Bard in the Aosta Valley. May 15 – Napoleon and his French army (40,000 men)—not including the field artillery and baggage trains—(35,000 light artillery and infantry, 5,000 cavalry) begin crossing the Alps. He selects the shortest route through the Great St Bernard Pass, and invades after five days traversing the northern region of Italy. June 2 – The first smallpox vaccination is made in North America, at Trinity, Newfoundland. June 3 – U.S. President John Adams moves to Washington. Because the President's Mansion is still under construction, President Adams takes up residence at Tunnicliffe's City Hotel near the unfinished U.S. Capitol Building. June 4 – War of the Second Coalition: Siege of Genoa – The French army is evacuated from Genoa. Marshal André Masséna is allowed to march out, with all the honours of war. A portion of his force joins General Louis-Gabriel Suchet, and the rest is conveyed in British ships to Antibes. June 14 War of the Second Coalition: Battle of Marengo – Napoleon defeats the Austrian troops near Marengo, Italy. French general Jean-Baptiste Kléber is assassinated in Cairo by Syrian Kurdish Muslim student Suleiman al-Halabi. June 15 – Convention of Alessandria (Armistice of Marengo): Austria agrees to evacuate much of Italy. June 19 – War of the Second Coalition: Battle of Höchstädt – General Jean Victor Marie Moreau leads French forces to victory, opening the Danube passageway to Vienna. July–September July 2 – The Union with Ireland Act 1800 is passed by the Parliament of Great Britain; the Irish Parliament passes similar legislation in the following month, uniting the two kingdoms and abolishing the Parliament of Ireland. July 10 – Fort William College is established by Lord Wellesley, British Governor-General of India, in Calcutta, to promote Bengali, Hindi and other vernaculars of the Indian subcontinent. August 1 – King George III gives royal assent to the second