Calendar

==Etymology==
The term ''calendar'' is taken from {{lang|la|[[calends|kalendae]]}},<ref>{{Cite book |last=Ma'Atnefert |first=Mwt Seshatms Nkatraet |url=https://books.google.com/books?id=C7KnAgAAQBAJ&newbks=0&printsec=frontcover&pg=PA9&dq=The+term+calendar+is+taken+from+kalendae,&hl=vi |title=You are Harmony ... Take Time to Harmonize ... Calendars and Time Connecting |date=2011 |publisher=Lulu.com |isbn=978-1-257-10758-2 |pages=9 |language=en}}</ref><ref>{{Cite book |last=Lewis |first=James R. |url=https://books.google.com/books?id=qQFlCwAAQBAJ&newbks=0&printsec=frontcover&pg=PA459&dq=The+term+calendar+is+taken+from+kalendae,&hl=vi |title=The Astrology Book: The Encyclopedia of Heavenly Influences |date=2003-03-01 |publisher=Visible Ink Press |isbn=978-1-57859-246-3 |pages=459 |language=en}}</ref> the term for the first day of the month in the Roman calendar, related to the verb {{lang|la|calare}} 'to call out', referring to the "calling" of the new moon when it was first seen.<ref>'' New Shorter Oxford English Dictionary''</ref> Latin {{lang|la|calendarium}} meant 'account book, register' (as accounts were settled and debts were collected on the calends of each month).<ref name=":0">{{Cite book |last=Sayeed |first=Ahmed |url=https://books.google.com/books?id=GVeoDwAAQBAJ&newbks=0&printsec=frontcover&pg=PT408&dq=Latin+calendarium+meant+'account+book,+register'&hl=vi |title=You Must Win: The winner can create History |date=2019-08-10 |publisher=Prowess Publishing |isbn=978-1-5457-4730-8 |language=en}}</ref> The Latin term was adopted in [[Old French]] as {{lang|fro|calendier}} and from there in [[Middle English]] as {{lang|enm|calender}} by the 13th&nbsp;century (the spelling ''calendar'' is early modern).<ref name=":0" />