1218: الفرق بين النسختين

'''سنة 1218''' كانت [[سنة بسيطة تبدأ يوم الإثنين]] (الرابط يظهر نموذج التقويم الكامل للسنة) من [[تقويم يولياني|التقويم اليولياني]].<ref>{{cite book|title=The New Cambridge Medieval History c.1198-c.1300|year=1999|publisher=Cambridge University Press|location=Cambridge|isbn=0-521-36289-X|pages=668–671|first=Peter|last=Linehan|editor=David Abulafia|chapter=Chapter 21: Castile, Portugal and Navarre}}</ref><ref>{{cite book|last=Zuijderduijn|first=Jaco|title=Medieval Capital Markets. Markets for renten, state formation and private investment in Holland (1300-1550)|year=2009|publisher=Brill|location=Leiden; Boston|isbn=978-9-00417565-5}}</ref><ref>{{cite web|url=http://www.bbc.co.uk/wales/history/sites/nation/pages/principality01.shtml |title=BBC Wales History |accessdate=2007-12-10 |archiveurl=https://web.archive.org/web/20071125170839/http://www.bbc.co.uk/wales/history/sites/nation/pages/principality01.shtml |archivedate=November 25, 2007 | deadurl =no yes|df=mdy }}</ref>