Labor unions began around 1866 with the forming of which group

"The National Labor Union (NLU) was the first national labor federation in the United States. Founded in 1866 and dissolved in 1873, it paved the way for other organizations, such as the Knights of Labor and the AFL (American Federation of Labor). It was led by William H."

Source: Wikipedia, but don't worry, this information has been double-checked :)

answer: to communicate with people on the other side.

explanation:

the  equal rights amendment  (era) states: "equality  of  rights  under the law shall not be denied or abridged by the united states or by any state on account of sex." congress first introduced the era in 1923, but the campaign for ratification took off in the 1960s during the  civil rightsmovement.