Samuel Gompers was founder of The American Federation of Labor (AFL), an organization that only allowed people trained in a particular skill, to become members. Samuel Gompers founded AFL Decmeber 8, 1886, and served as president of AFL from 1886 to 1894, and then from 1895 to 1924, due to his death.
Direct causality can be drawn between nationalism and war. ... Nationalist groups within a state who desire their own independent state, (one organised to include their ethnic or cultural identity, for example), may conduct regular or irregular warfare in order to forcibly persuade a state to grant them independence