`  == Annunciation style ==  Such use of ``Old Style`` (O.S.)   (Washington James Evans, 1998 The History and Practice of Ancient Astronomy p. 170).  The green text was added in the last 12 hours. The use of A.S. in histories is very uncommon so it will need a very good source to back up the claim. Evans 1998, Page 170, is available on-line and it does not support the writing in green, because the writing in green implies that one would find ``30 January 1648 (A.S.)`` for the date of the execution of Charles I.  Also Evans is presenting one of two usages for old style/new style, there are other sources available that show that modern historians also use old style/new style to indicate an adjustment for the start of year (see for example British National archives: Death warrant of Charles I - Citizenship).      `