Every writer is different and goes about getting to the elements of their story in a different fashion. Being a fan of the late and great Patrick O'Brian, who was by trade a Naval Historian and consequently wrote a great series of books that I know as the Master and Commander Series. Captain Jack Aubrey and Doctor Maturin were made up and fictional characters but the ships they sailed on, the exploits of what happened between this ship and that ship came right out of the history books. More specifically they came out of Naval Journals, Captains Logs, and British Naval History. There is a paragraph or so at the beginning of each of his books where he explains he couldn't come up with stuff that would overshadow the actual feats of true history. He also explains...