From: Markus Kuhn <Markus.Kuhn@cl.cam.ac.uk>

He would be very interested into any pointers of the history of these three date notations, and actually I am quite interested as well.

Unfortunately, no history, but I do have some thoughts: * another notation is <day>.<month number in lower case roman numerals>.<year> Example: 31.i.99, 9.ix.99, 1.i.2000 * day.month.year is logical, as is year.month.day. Historical accident may prefer one or the other. * month.day.year is odd. Why would people use it? Perhaps it is a US invention. Examination of historical records may be fruitful. I did find "John Hancock, President. Dated, Philadelphia, June 19, 1775."