The crusades lasted 200 years. It started in 1095 then went on to 129. :)
Alfred Thayer Mahan was an American Naval officer in the latter half of the 19th-Century that is generally regarded as the father of the modern Navy, especially in the Unites States but also around the world. His writing would become required reading for anyone interested in the Navy or naval issues and is still regarded as a prescient thinker on international relations.
Forming an opinion about history
Unruly weather with no warning.
transportation availability struggles.
women still treated poorly.
no advanced technology.
probably no hospital or authorities.
