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Database of Number Correlations The purpose of this section is to discover unexpected connections between various material and occult phenomena. A great resource for mathematicians. Notable Events for over 2000 years of history: Discover unusual synchronicities in World History. 2500 plus pages.
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The Number 1687: Properties and Meanings

Prime Factors of 1687=7x241.

1687 Glarona is a main-belt asteroid.


The Year 1687 AD

In the year 1687 AD there was a large earthquake in Peru.

In the year 1687 AD Isaac Newton's Philosophić Naturalis Principia Mathematica, known as the Principia, is published by the Royal Society of London.

In the year 1687 AD Sir William Petty, English philosopher died.

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