Old Style and New Style dates (English Wikipedia)

Spathaky, Mike. "Old Style and New Style Dates and the change to the Gregorian Calendar". Retrieved 19 August 2023.. "Before 1752, parish registers, in addition to a new year heading after 24th March showing, for example '1733', had another heading at the end of the following December indicating '1733/4'. This showed where the Historical Year 1734 started even though the Civil Year 1733 continued until 24th March. ... We as historians have no excuse for creating ambiguity and must keep to the notation described above in one of its forms. It is no good writing simply 20th January 1745, for a reader is left wondering whether we have used the Civil or the Historical Year. The date should either be written 20th January 1745 OS (if indeed it was Old Style) or as 20th January 1745/6. The hyphen (1745-6) is best avoided as it can be interpreted as indicating a period of time."
Spathaky, Mike Old Style and New Style Dates and the change to the Gregorian Calendar. "An oblique stroke is by far the most usual indicator, but sometimes the alternative final figures of the year are written above and below a horizontal line, as in a fraction, thus: $17{\tfrac {33}{34}}$ . Very occasionally a hyphen is used, as 1733-34."

doi.org (Global: 2^nd place; English: 2^nd place)

Poole 1995, pp. 95–139. Poole, Robert (1995). "'Give us our eleven days!': calendar reform in eighteenth-century England". Past & Present (149). Oxford Academic: 95–139. doi:10.1093/past/149.1.95. Archived from the original on 5 December 2014.
Pollard, A. F. (1940). "New Year's Day and Leap Year in English History". The English Historical Review. 55 (218). Oxford University Press: 180–185. doi:10.1093/ehr/lv.ccxviii.177. JSTOR 553864. Archived from the original on 2 February 2021.

historyofparliamentonline.org (Global: 2,879^th place; English: 1,575^th place)

See for example this biographical entry: Lancaster, Henry (2010). "Chocke, Alexander II (1593/4–1625), of Shalbourne, Wilts.; later of Hungerford Park, Berks". In Thrush, Andrew; Ferris, John P. (eds.). The History of Parliament: the House of Commons 1604–1629. Cambridge: Cambridge University Press.

jstor.org (Global: 26^th place; English: 20^th place)

Pollard, A. F. (1940). "New Year's Day and Leap Year in English History". The English Historical Review. 55 (218). Oxford University Press: 180–185. doi:10.1093/ehr/lv.ccxviii.177. JSTOR 553864. Archived from the original on 2 February 2021.

loc.gov (Global: 70^th place; English: 63^rd place)

catdir.loc.gov

Cheney & Jones 2000, p. 19. Cheney, C. R.; Jones, Michael, eds. (2000). A Handbook of Dates for Students of British History (PDF). Royal Historical Society Guides and Handbooks. Vol. 4 (Revised ed.). Cambridge: Cambridge University Press. pp. 17–20. ISBN 978-0-521-77095-8.

localaccess.com (Global: low place; English: low place)

www2.localaccess.com

Baker, John. "Why Bacon, Oxford and Other's Weren't Shakespeare". Archived from the original on 4 April 2005.) uses the quote by Benjamin Woolley and cites The Queen's Conjurer, The Science and Magic of Dr. John Dee, Adviser to Queen Elizabeth I, page 173.

monticello.org (Global: 7,574^th place; English: 4,352^nd place)

"Old Style (O.S.)". monticello.org. June 1995. Retrieved 6 May 2017.

narod.ru (Global: 244^th place; English: 1,325^th place)

grigam.narod.ru

История календаря в России и в СССР (Calendar history in Russia and the USSR) Archived 17 October 2009 at the Wayback Machine, chapter 19 in История календаря и хронология by Селешников (History of the calendar and chronology by Seleschnikov) (in Russian). ДЕКРЕТ "О ВВЕДЕНИИ ЗАПАДНО-ЕВРОПЕЙСКОГО КАЛЕНДАРЯ" (Decree "On the introduction of the Western European calendar") Archived 21 January 2007 at the Wayback Machine contains the full text of the decree (in Russian).

nationalarchives.gov.uk (Global: 744^th place; English: 547^th place)

Death warrant of Charles I web page of the UK National Archives. A demonstration of New Style, meaning Julian calendar with a start of year adjustment.

niv.ru (Global: 6,875^th place; English: low place)

История календаря в России и в СССР (Calendar history in Russia and the USSR) Archived 17 October 2009 at the Wayback Machine, chapter 19 in История календаря и хронология by Селешников (History of the calendar and chronology by Seleschnikov) (in Russian). ДЕКРЕТ "О ВВЕДЕНИИ ЗАПАДНО-ЕВРОПЕЙСКОГО КАЛЕНДАРЯ" (Decree "On the introduction of the Western European calendar") Archived 21 January 2007 at the Wayback Machine contains the full text of the decree (in Russian).

norbyhus.dk (Global: low place; English: low place)

Nørby, Toke. The Perpetual Calendar: What about England? Version 29 February 2000.

pepysdiary.com (Global: low place; English: low place)

Pepys, Samuel (31 December 2004). "Tuesday 31 December 1661". www.pepysdiary.com. Archived from the original on 24 November 2021.
Pepys, Samuel (January 2005). "Wednesday 1 January 1661/62". www.pepysdiary.com. Archived from the original on 24 November 2021.

rsl.ru (Global: 1,928^th place; English: 9,197^th place)

viewer.rsl.ru

"Ukase No. 1735". Полное собрание законов Российской империи. Том III [Complete Collection of Laws of the Russian Empire. Volume III.]. 10 December 1699. p. 682.
"Ukase No. 1736". Полное собрание законов Российской империи. Том III [Complete Collection of Laws of the Russian Empire. Volume III.]. 20 December 1699. p. 683.

slate.com (Global: 259^th place; English: 188^th place)

Engber, Daniel (18 January 2006). "What's Benjamin Franklin's Birthday?". Slate. Retrieved 8 February 2013. (Both Franklin's and Washington's confusing birth dates are clearly explained.)

thegazette.co.uk (Global: 200^th place; English: 141^st place)

"The London Gazette | From Tuesday September 1 O.S. to Saturday September 16 N.S. 1752". London Gazette (9198): 1. 1 September 1752.

ucl.ac.uk (Global: 1,306^th place; English: 885^th place)

discovery.ucl.ac.uk

Sprigge, Timothy L. S., ed. (2017) [1968]. "Jeremy Bentham to Samuel Bentham, 15 Feb. 1776". The Correspondence of Jeremy Bentham: Volume I: 1752–76 (PDF). London: UCL Press. p. 294. ISBN 978-1-911576-05-1. God's-daddikins! it is my birthday – say something pretty to me on the occasion.

web.archive.org (Global: 1^st place; English: 1^st place)

Poole 1995, pp. 95–139. Poole, Robert (1995). "'Give us our eleven days!': calendar reform in eighteenth-century England". Past & Present (149). Oxford Academic: 95–139. doi:10.1093/past/149.1.95. Archived from the original on 5 December 2014.
Bond 1875, page 91. Bond, John James (1875). Handy Book of Rules and Tables for Verifying Dates With the Christian Era Giving an Account of the Chief Eras and Systems Used by Various Nations...'. London: George Bell & Sons. Archived from the original on 21 November 2020. Retrieved 13 March 2016.
Bond 1875, xvii–xviii: original text of the Scottish decree. Bond, John James (1875). Handy Book of Rules and Tables for Verifying Dates With the Christian Era Giving an Account of the Chief Eras and Systems Used by Various Nations...'. London: George Bell & Sons. Archived from the original on 21 November 2020. Retrieved 13 March 2016.
Pollard, A. F. (1940). "New Year's Day and Leap Year in English History". The English Historical Review. 55 (218). Oxford University Press: 180–185. doi:10.1093/ehr/lv.ccxviii.177. JSTOR 553864. Archived from the original on 2 February 2021.
Pepys, Samuel (31 December 2004). "Tuesday 31 December 1661". www.pepysdiary.com. Archived from the original on 24 November 2021.
Pepys, Samuel (January 2005). "Wednesday 1 January 1661/62". www.pepysdiary.com. Archived from the original on 24 November 2021.
История календаря в России и в СССР (Calendar history in Russia and the USSR) Archived 17 October 2009 at the Wayback Machine, chapter 19 in История календаря и хронология by Селешников (History of the calendar and chronology by Seleschnikov) (in Russian). ДЕКРЕТ "О ВВЕДЕНИИ ЗАПАДНО-ЕВРОПЕЙСКОГО КАЛЕНДАРЯ" (Decree "On the introduction of the Western European calendar") Archived 21 January 2007 at the Wayback Machine contains the full text of the decree (in Russian).
Baker, John. "Why Bacon, Oxford and Other's Weren't Shakespeare". Archived from the original on 4 April 2005.) uses the quote by Benjamin Woolley and cites The Queen's Conjurer, The Science and Magic of Dr. John Dee, Adviser to Queen Elizabeth I, page 173.

wikisource.org (Global: 27^th place; English: 51^st place)

en.wikisource.org

Gerard 1908. Gerard, John (1908). "General Chronology § Beginning of the year" . In Herbermann, Charles (ed.). Catholic Encyclopedia. Vol. 3. New York: Robert Appleton Company.

Old Style and New Style dates (English Wikipedia)

academia.edu (Global: 121st place; English: 142nd place)

archive.org (Global: 6th place; English: 6th place)

british-history.ac.uk (Global: 903rd place; English: 521st place)

cree.name (Global: low place; English: low place)

doi.org (Global: 2nd place; English: 2nd place)

historyofparliamentonline.org (Global: 2,879th place; English: 1,575th place)

jstor.org (Global: 26th place; English: 20th place)

loc.gov (Global: 70th place; English: 63rd place)

catdir.loc.gov

localaccess.com (Global: low place; English: low place)

www2.localaccess.com

monticello.org (Global: 7,574th place; English: 4,352nd place)

narod.ru (Global: 244th place; English: 1,325th place)

grigam.narod.ru

nationalarchives.gov.uk (Global: 744th place; English: 547th place)

niv.ru (Global: 6,875th place; English: low place)

norbyhus.dk (Global: low place; English: low place)

pepysdiary.com (Global: low place; English: low place)

rsl.ru (Global: 1,928th place; English: 9,197th place)

viewer.rsl.ru

slate.com (Global: 259th place; English: 188th place)

thegazette.co.uk (Global: 200th place; English: 141st place)

ucl.ac.uk (Global: 1,306th place; English: 885th place)

discovery.ucl.ac.uk

web.archive.org (Global: 1st place; English: 1st place)

wikisource.org (Global: 27th place; English: 51st place)

en.wikisource.org

academia.edu (Global: 121^st place; English: 142^nd place)

archive.org (Global: 6^th place; English: 6^th place)

british-history.ac.uk (Global: 903^rd place; English: 521^st place)

doi.org (Global: 2^nd place; English: 2^nd place)

historyofparliamentonline.org (Global: 2,879^th place; English: 1,575^th place)

jstor.org (Global: 26^th place; English: 20^th place)

loc.gov (Global: 70^th place; English: 63^rd place)

monticello.org (Global: 7,574^th place; English: 4,352^nd place)

narod.ru (Global: 244^th place; English: 1,325^th place)

nationalarchives.gov.uk (Global: 744^th place; English: 547^th place)

niv.ru (Global: 6,875^th place; English: low place)

rsl.ru (Global: 1,928^th place; English: 9,197^th place)

slate.com (Global: 259^th place; English: 188^th place)

thegazette.co.uk (Global: 200^th place; English: 141^st place)

ucl.ac.uk (Global: 1,306^th place; English: 885^th place)

web.archive.org (Global: 1^st place; English: 1^st place)

wikisource.org (Global: 27^th place; English: 51^st place)