Much has been written about how to write dates. My personal preference stems from using a very large computer database. The most important part of a date first, the year. When I want to sort 100,000 people by date, I want the year first and I use a 4 digit year in every case so that all of the data lines up for easy viewing. Therefore, I convert to the modern date, and make a notation that 1662 is really 1661-62 in the comment section of that piece of data. The next most important info is the month and lastly the day. I use a three-letter month, again so everything lines up, and I use a two-digit day for the same reason. So if I encounter the date 4 11 1661, I convert it to 1662 Jan 04 and remark 1661-62 to remind me that I have converted the Julian date to Gregorian. If I am not sure of the info, I do not change the date. Sometimes the date has already been changed for me, so I don't change every date automatically. I like to find original sources that indicate which day is the actual date mentioned. So when I am looking for a Mary Smith in my database who was born about 1660, I can pull a report of all the Mary Smiths in my database and sort them by date. It takes about 2 seconds to find the person I need. The conventional and traditional dating putting the day first takes quite a few minutes to find the right person and when doing a considerable amount of research means that time is of the essence. Professional genealogists will say I do it wrong. So be it. My response to them is... Join the Computer Age.