Yeah, you're right.. I was thinking that archaeologists play better at that role, but it's undeniable that archaeologists are both historians and scientists.
Well, not exactly. Like I said, historians (from the Latin for story or narrative) concentrate on documents or accounts of the past, while archaeologists focus on artifacts and other physical evidence of the past. There's some overlap, of course, which is why people tend to think of them as interchangeable, but they're distinct specialties.
Nevertheless, historians have other important roles such as being able to inform events that happened between known planets that could explain their sour attitude towards each other or their possible hostility towards you. They hold the ancient record books to past activities of civilizations that might prove relevant.
Definitely.