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<1920
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1922>

The Number 1921

Prime Factors of 1921=17x113.

1921 is a 16-gonal Number.

1921 is a Centered 16-gonal Number.


The Year 1921 AD

In the year 1921 AD John Larson invented the lie detector.

In the year 1921 AD the first robot was built.


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<1920
Number Data-Base
Random Number Random Number Random Number
1922>
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. 2000 plus pages.
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