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# Calculate the number 519

NUMBERMANIA: Calculate the number 519 using numbers [7, 3, 6, 6, 81, 207] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
The first user who solved this task is Nílton Corrêa De Sousa.
#brainteasers #math #numbermania

### Great Toast

John O'Reilly hoisted his beer and said, "Here's to spending the rest of me life between the legs of me wife!" That won him the top prize for the best toast of the night.
He went home and told his wife, Mary, "I won the prize for the best toast of the night." She said, "Aye, John, what was your toast?" John Said, "Here's to spending the rest of me life sitting in church beside me wife." "Oh, that is very nice indeed, John," Mary said.
The next day, Mary ran into one of John's toasting buddies on the street corner. The man chuckled leeringly and said, "John won the prize, the other night, with a toast about you, Mary."
She said, "Aye and I was a bit surprised myself! You know, he's only been there twice. Once he fell asleep, and the other time I had to pull him by the ears to make him come".

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### U.S. geology book

In 1809, the first significant U.S. geology book was read by William Maclure before the American Philosophical Society at Philadelphia, Pa. HisObservations on the Geology of the United States, contained the first chart of United States territory that divided the land into rock types. Though crude, it was the first colored true geological map of the country and one of the world's earliest geological maps. It was published with revisions in 1817 that accepted basalt and granite to be rocks of volcanic origin (thus shrinking the concept of “Neptunian” rocks). Maclure was a wealthy businessman and amateur geologist who emigrated from Scotland and became a citizen in 1796. He is considered the first notable and influential American geologist.
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