Template:Selected anniversaries/March 30

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  • 1599: Mathematician Adam Ries dies. He wrote textbooks for practical mathematics, promoting the advantages of Arabic/Indian numerals over Roman numerals.

    1599: Mathematician Adam Ries dies. He wrote textbooks for practical mathematics, promoting the advantages of Arabic/Indian numerals over Roman numerals.

  • 1939: Hellscreiber teleprinter system used to publish new biography of mathematician Adam Ries.

    1939: Hellscreiber teleprinter system used to publish new biography of mathematician Adam Ries.

  • 1942: Der Reichsspritzenmeister develops new memory-wiping drug for Abomynous.

    1942: Der Reichsspritzenmeister develops new memory-wiping drug for Abomynous.

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