http://www.history.com/topics/spanish-american-war
https://history.state.gov/milestones/1866-1898/spanish-american-war
http://www.softschools.com/timelines/spanishamerican_war_timeline/116/
https://www.loc.gov/rr/hispanic/1898/treaty.html
https://www.loc.gov/rr/news/topics/spanishAmWar.html