Editing Old Style and New Style dates (section)

===Russia===
{{more|Adoption of the Gregorian calendar#Russia}}
The Gregorian calendar was implemented in Russia on {{nowrap|14 February 1918}} by dropping the [[Julian calendar|Julian]] dates of {{nowrap|1–13 February 1918}},{{efn|The Julian calendar had by that time drifted by another three days since 1582 (in 1700, 1800 and 1900, see [[Century leap year]]) from astronomical reality, so thirteen days needed to be elided.}} pursuant to a [[Sovnarkom]] decree signed {{nowrap|24 January 1918}} (Julian) by [[Vladimir Lenin]]. The decree required that the Julian date was to be written in parentheses after the Gregorian date, until {{nowrap|1 July 1918.<ref name=Grigorenko>[http://grigam.narod.ru/kalend/kalen19.htm История календаря в России и в СССР (Calendar history in Russia and the USSR)] {{Webarchive|url=https://web.archive.org/web/20091017163723/http://grigam.narod.ru/kalend/kalen19.htm |date=17 October 2009 }}, chapter 19 in История календаря и хронология by Селешников (History of the calendar and chronology by Seleschnikov) {{in lang|ru}}. [http://www.niv.ru/library/006/001.htm ДЕКРЕТ "О ВВЕДЕНИИ ЗАПАДНО-ЕВРОПЕЙСКОГО КАЛЕНДАРЯ" (Decree "On the introduction of the Western European calendar")] {{webarchive|url=https://web.archive.org/web/20070121144021/http://www.niv.ru/library/006/001.htm |date=21 January 2007 }} contains the full text of the decree {{in lang|ru}}.</ref>}}

It is common in English-language publications to use the familiar Old Style or New Style terms to discuss events and personalities in other countries, especially with reference to the [[Russian Empire]] and the very beginning of [[Russian Soviet Federative Socialist Republic|Soviet Russia]]. For example, in the article "The October (November) Revolution", the ''[[Encyclopædia Britannica]]'' uses the format of "25 October (7 November, New Style)" to describe the date of the start of the revolution.{{sfn|EB online|2017}}