Thank you Durandal and Thyrzul. I'm going to try and adapt Thyrzul's text to the short-sentence present-tense style of the History of Sirius item because I think it makes it easier to read and understand quickly.
I may remove some points later on if the History of Gallia grows to long, because I set the goal that new people can read and understand one history item in less than 2-3 minutes, while doing things like navigating through trade routes on the side.