> I wonder what the practical side effects are of being off by one when discussing events that happened c. thousands of years ago. A days-as-dots representatio

> I wonder what the practical side effects are of being off by one when discussing events that happened c. thousands of years ago. A days-as-dots representation[1] has one day precision at a thousand years BP, and since accuracy of a day or week is often possible, it was actually an issue. Wrestling with "everyone has their own odd calendar" was a pain. [1] "History shown with days as dots - so centuries fit on a screen"'s "Days-as-dots demo" was basically an exploratory UX test piece: http://www.clarifyscience.info/part/QEt9x http://www.clarifyscience.info/part/QEt9x . The Google Books and Google Newspapers links are regrettably rotted - it was great fun to click on random days in the 1800's and 1900's and read random newspapers of that day. :/ The inset NY Tribune from the Library of Congress still works. My fuzzy impression is the google newspapers database is simply unavailable now?