As part of the original design, the names of 72 French scientists and other famous people is imprinted on the sides of the Eiffel tower.

In the U.S., over 35 million people have used some sort of illegal drug in the last year.

Mark Twain was born on a day in 1835 when Halley's Comet came into view. When he died in 1910, Halley's Comet was in view again.

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