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Outstanding events of the first half of the 20th century.

  • Installation of the first assembly line

    Installation of the first assembly line
    Ford’s assembly line starts rolling on 1913, in charge of Henry Ford in Michigan. His innovation reduced the time it took to build a car from more than 12 hours to two hours and 30 minutes.
  • Period: to

    From 1913 to 1939

  • Panama canal opens for the first time

    Panama canal opens for the first time
    Panama canal construction was directed by Theodore Roosevelt. It was open to traffic in 1914 and it was so important as it improved trade between countries, meant Panama's absolute independence and boosted the U.S. economy.
  • Publication of the theory of general relativity of Albert Einstein

    Publication of the theory of general relativity of Albert Einstein
    The general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1915 in Berlin. Its importance lies in that it is the current description of gravitation in modern physics.
  • Annunciation of "The Decree on Land"

    Annunciation of "The Decree on Land"
     The Decree on Land announced by Lenin was approved in 1917. This event was very significant as it decreed the abolition of private property and the redistribution of land among peasants.
  • War World I ended with an armistice

    War World I ended with an armistice
    The Armistice of 1918 was signed at Le Francport.This event was very important as that ended fighting on land, sea and air in World War I between the Allies and their opponent, Germany.
  • Miguel Primo de Rivera led a military coup and became dictator

    Miguel Primo de Rivera led a military coup and became dictator
    The coup d'état of Primo de Rivera took place in Spain between 13 and 15 September 1923 and was led by Miguel Primo de Rivera.It was an important event as King Alfonso XIII did not oppose the coup.
  • The discovery of Penicillin

    The discovery of Penicillin
    In 1928 Alexander Fleming discovers Penicillin in London. Its importance is mainly in the millions of people it has saved since it was discovered and because it has been one of the fundamental pillars of current pharmacology.
  • Von Hindenburg appointed Hitler as Chancellor of Germany

    Von Hindenburg appointed Hitler as Chancellor of Germany
    In 1933, the President of Germany, General Paul von Hindenburg, influenced by the conservative politician Franz von Papen, appointed Adolf Hitler as chancellor. This event marked the shift from democracy to dictatorship in Germany.
  • Spanish civil war starts

    Spanish civil war starts
    In 1936 the Spanish Civil War between the republican and national sides starts in Spain .It’s important according to many historians because it is the antechamber of World War II in Europe, or as its first episode.
  • The end of Spanish Civil War

    The end of Spanish Civil War
    In 1939, the republicans finally resigned from Madrid and let the nationalists win, ending the Spanish Civil War. With the end of the conflict, useful conclusions were drawn for the country's future on peace and coexistence.
  • The invasion of Poland

    The invasion of Poland
    The Invasion of Poland in 1939 was so significant as it marked the start of World War II. It was led by the Nazis, a small contingent of Slovaks, and the Soviet Union.