1917 Between April of this year and December there have been US soldiers diagnosed with syphilis or gonorrhea, incurable at this time. The US is the only force in Europe that prohibits the dissemination of condoms. (citation: Susan Hunter, AIDS in Africa)
Social Classes- Mayan social structure was rigidly divided between nobles, commoners, serfs, and slaves. The noble class was complex and specialized. Noble status and the occupation in which a noble served were passed on through elite family lineages.