On Sun, 18 Aug 2013 22:06:19 +0100, Graeme Wall <rail@greywall.demon.co.uk> wrote: >On 18/08/2013 20:30, Richard Smith wrote: >> On 18/08/13 20:24, Graeme Wall wrote: >> >>> 1900s plural is the decade, just as 1920s plural is the decade. >> >> You may use that convention, but a lot of people do use 1900s to mean >> the century, so the ambiguity is still there. >> > > >Not something I've noticed, > Nor me. >usually if you are dealing in centuries you >refer to the 19th or 20th or whatever. Just goes to show you have to be >very careful in making sure your date references are unambiguous.