June 20 in history

daily history, June 20.
June 20, 1782: US Congress approved Great Seal of the United States of America.
June 20, 1866: Italy declared war on Austria thus beginning the Third Italian War of Independence.
June 20, 1939: First flight of a plane using liquid propellant rocket engine.
June 20, 1960: Federation of Mali and Senegal became independent from France.
June 20, 1988: Coup in Haiti, Henri Namphy overthrows Leslie Manigat.
June 20, 1992: constitution of
Paraguay was formed.
June 20, 2018: Algeria turned off its internet to stop school students cheating during exams.

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