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  • Gregorian calendar
    ...|title=Outlines of Astronomy |year=1878 |publisher=[[Longman]] |orig-year=1849 | page=673 }}</ref> This would reduce the average year to 365.24225 days. H [[Category:1580s introductions]] ...
    73 KB (10,495 words) - 06:49, 14 February 2025
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