Portal:Germany/Anniversaries/July/July 23

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• 1164 – The remains of the Three Kings arrive at Cologne Cathedral
• 1777 – Birth of painter Philipp Otto Runge
• 1793 – The French retreat after the Siege of Mainz ends the Mainz Republic
• 1886 – Birth of physicist Walter H. Schottky
• 1899 – Birth of Gustav Heinemann, President of Germany 1969-1974