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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 813: Properties and Meanings

Prime Factors of 813=3x271.

813 is a 57-gonal Number.

813 is a 272-gonal Number.

813 is a Centered 29-gonal Number.


The Year 813 AD

In the year 813 AD Al Mamon founded the Baghdad school of astronomy.

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