What happened on 13 August?

10 events from the Ever-When timeline, ranked by how much they mattered.

1. 1961 Construction of Berlin Wall East Germany walls off West Berlin to stop emigration; symbol of the Cold War.
2. 1876 Wagner's The Ring of the Nibelung premieres Four-opera cycle staged at Bayreuth; reshapes opera and Western music.
3. 1926 Born: Fidel Castro Cuban revolutionary leader who overthrew Batista in 1959 and ruled Cuba as Prime Minister and then President for nearly five decades. Defining figure of Cold War Latin America.
4. 1521 Aztec Empire ends Conventional end of Aztec Empire.
5. 1920 Battle of Warsaw (1920) Polish victory ('Miracle on the Vistula') stops the Red Army advance.
6. 1704 Battle of Blenheim Marlborough and Eugene of Savoy crush the Franco-Bavarian army on the Danube; saves Vienna and turns the war.
7. 1784 Pitt's India Act Brings the British East India Company's political activities under direct Crown supervision through a new Board of Control; the institutional bridge to direct Crown rule of India i
8. 1940 Eagle Day opens the Luftwaffe's main assault Adlertag: the Luftwaffe launches its all-out bid to destroy Fighter Command in the air and on the ground. What Göring doesn't grasp is the system he is fighting — Chain Home radar,
9. 1849 Hungary surrenders at Vilagos Overwhelmed after Tsar Nicholas I sends 200,000 Russian troops to rescue the Habsburgs, the Hungarian army lays down its arms — the last of the 1848 revolutions to fall. Thirteen o
10. 1899 Born: Alfred Hitchcock British film director who defined the modern thriller.