Text of 1 Hover Note for Roses digital edition of “A Letter from Mr Jonathan Kay, Chyrurgeon in Newport, Shropshire, Concerning a Strange Cancer, of which his Father Dyed” (1702)

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March the 4th, 1701/2 — I.e., 4 March 1702 N.S.
  Until 1752, the British calendar year legally began on March 25, rather than January 1. The period between December 31 and March 25 is thus styled 1701–2 or 1701/2 in some early-modern MSS. and publications. Alternately, the abbreviation N.S. is used to indicate “new style” calendar dating, and O.S., to indicate “old style” calendar dating. ::