Walter Hunt patented the safety pin in 1849. He later sold the patent rights for only $400.

After the Eiffel Tower was built, one person was killed during the installation of the lifts. No one was killed during the actual construction of the tower.

The most expensive perfume in the world is Parfum VI, which was made by Arthur Burnham. A 4 inch bottle which is covered with diamonds and 24-carat gold costs $71,380.

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