Nikola Tesla tried to explain how the phenomenon of ball lightning works.
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The world's favorite paper joiner, the stapler was patented by C. H. Gould in England.
After a four-month journey, the Venera 14 spacecraft landed on Venus.
A tropical storm named Irina on the island of Madagascar killed 65 people.
The battle of the Ruhr campaign began during WWII with an air raid in Essen, Germany.
Pope Francis made history when he became the first pope to visit Iraq.
