I'm not sure how a historical should be dated. As I understand it, in the early 17th century, the new year began sometime in March, which meant that the ships sailing to the new world leaving in December of 1606 arrived in the New World three months later, still 1606, though by the time (May) they made landfall in Virginia, we date it as 1607. I would like to be accurate as well as easy to understand, so, what date should I give to January- March? If I use the old calendar, only historians will be able to interpret the time accurately. If I give the modern calendar, I will be seen by some as inaccurate. Is there some custom to follow here?