The lost Roman city of Pompeii was rediscovered by a Spanish engineer Rocque Joaquin de Alcubierre.
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The Netherlands became the first country in the world to allow same-sex marriage.
The Royal Canadian Air Force was formed out of the Canadian Air Force.
The Nagorno-Karabakh conflict between Armenia and Azerbaijan began.
The Bolivian city of Potosí was founded after vast deposits of silver were discovered in the mountains nearby.
Jesus Christ's Last Supper was held.
