Neal Stephenson: I was fortunate, because this is a very well documented period of history, compared to some others, and it's documented largely in English. So it was not one of these occasions where it was necessary to learn a new language or delve into obscure historical records. I did little to no genuine original research on this. I simply availed myself of what was already out there in bookstores and libraries all over the place. So, by reading what had been written about these people both at the time and in the 300 years since then, it wasn't too hard to get a sense of what they were like and how each interacted with the other.