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X-WR-CALDESC:Wydarzenia dla Polskie Stowarzyszenie Racjonalistów
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DTSTART;VALUE=DATE:20230123
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SUMMARY:1843 Jakub Kryštof Rad opatentował cukier w kostkach
DESCRIPTION:1843 Якуб Криштоф Рад запатентував цукор- рафінад
URL:https://www.psr.org.pl/wydarzenie/1843-jakub-krystof-rad-opatentowal-cukier-w-kostkach-2/
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