{"product_id":"gregorian-1500s-antique-calendar-horology-mathematics-rare-german-fdc-postcard","title":"Gregorian 1500s Antique Calendar Horology Mathematics Rare German FDC Postcard","description":"\u003cdiv class=\"n6owBd awi2gc\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-hveid=\"CAAIDBAA\" data-processed=\"true\" data-dsrp=\"GgRCAhABKgICBDABOAE\" data-complete=\"true\"\u003eTS448x A rare opportunity to secure this 1982 origin specialist German first day cover of this Gregorian calendar 400th anniversary celebration accompanied by the special souvenir stamp with its first day of issue limited edition commemorative frank and information on reverse unused and mint.\u003cspan\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"n6owBd awi2gc\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-hveid=\"CAAIDBAA\" data-processed=\"true\" data-dsrp=\"GgRCAhABKgICBDABOAE\" data-complete=\"true\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"n6owBd awi2gc\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-hveid=\"CAAIDRAA\" data-complete=\"true\" data-processed=\"true\" data-dsrp=\"GgRCAhABKgICBDABOAE\"\u003e\n\u003cem class=\"zhvwWe\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-complete=\"true\" data-processed=\"true\"\u003eThe adoption of the Gregorian system in the late sixteenth century represented a monumental leap forward in global administrative and scientific standardisation. By aligning the civil year more precisely with the solar cycle, this chronological reform transformed global commerce, religious observance, and navigational science, reflecting a profound shift toward mathematical rationalism during the European Renaissance.\u003c!--TgQPHd|||[]--\u003e\u003c\/em\u003e\u003cspan\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"yhAwj\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-complete=\"true\" data-processed=\"true\" data-sfc-inited=\"2\"\u003e\u003c!--TgQPHd|||[]--\u003e\u003c\/div\u003e","brand":"Postcard Finder","offers":[{"title":"Default Title","offer_id":57784906940742,"sku":null,"price":3.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/3216\/9030\/files\/04112026_148.jpg?v=1793818741","url":"https:\/\/postcardfinder.co.uk\/products\/gregorian-1500s-antique-calendar-horology-mathematics-rare-german-fdc-postcard","provider":"Postcard Finder","version":"1.0","type":"link"}