Sources
http://worldatwar.net/timeline/other/league18-46.html
http://www.princeton.edu/~sbwhite/un/leagwebb.html
http://www.indiana.edu/~league/timeline.htm
http://www.history.ucsb.edu/faculty/marcuse/classes/33d/projects/1920s/VersaillesTreatyCarlos.htm
http://www.pbs.org/wgbh/globalconnections/mideast/questions/uspolicy/