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John Hartz 1886 - 1967

John Hartz of Mount Clemens, Macomb County, Michigan was born on July 2, 1886, and died at age 81 years old in December 1967.
John Hartz
Mount Clemens, Macomb County, Michigan 48043
July 2, 1886
December 1967
Male
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John Hartz's History: 1886 - 1967

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  • 07/2
    1886

    Birthday

    July 2, 1886
    Birthdate
    Unknown
    Birthplace
  • 12/dd
    1967

    Death

    December 1967
    Death date
    Unknown
    Cause of death
    Unknown
    Death location
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  • Did you know?
    John Hartz lived 6 years longer than the average family member when died at the age of 81.
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Did you know?
In 1886, in the year that John Hartz was born, on May 4th, a general strike began in Chicago. Workers were striking for an 8 hour workday and in protest of the killing - by police - of several workers the day before. When an unknown person threw a dynamite bomb, the strike became violent. Seven policemen were killed as well as 4 civilians. It became known as the Haymarket Riot and eventually resulted in an 8 hourwork day as well as commemorations on May 1st for worker's rights.
Did you know?
In 1905, when he was 19 years old, the German born physicist, Albert Einstein, proposed the Special Theory of Relativity: 1) that observers can never detect uniform motion except relative to other objects and that 2) unlike the velocity of massive objects, the speed of light is a constant and is the same for all observers independent of their constant velocity toward or away from the light source. Not such simple concepts that lead to the equation everyone now knows: E = mc2.
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John Hartz's Family Tree & Friends

John Hartz's Family Tree

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