The first council meeting of the League of Nations was held in Paris.
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The chandelier of the Palais Garnier Opera House broke, and its debris fell on a crowd.
Arc de Triomphe in Paris became the world's largest triumphal arch at 164 ft tall.
The USA signed The Louisiana Purchase in Paris.
Doctors Without Borders was founded in Paris by French doctors and journalists.
The world's longest traffic jam from Lyon to Paris, France, extended a lengthy 104 miles (167 km).
