A semitone, also called a half step or a half tone, is the smallest musical interval commonly used in Western tonal music, and it is considered the most dissonant when sounded harmonically. It is defined as the interval between two adjacent notes in a 12-tone scale (e.g. from C to C â¯).
The National Labor Union. The first large-scale U.S. union was the National Labor Union, founded in 1866 to organize skilled and unskilled laborers, farmers, and factory workers.
Confidence votes 5. The first labor union in the US, was founded in Philadelphia. It came to be when workers in Philadelphia organized the Carpenter's Company; consisting of a group of shoemakers. The nation's first union was formed in 1794.he trade unions were created to protect the workers and were not exclusive of any particular kind of worker. The first trade union in the US was the National Labor Union, founded in 1866. It failed and was soon replaced by the Knights of Labor, 1869.