Susan anthony and elizabeth stanton were responsible for starting the american rights association in 1866.

The missing word in the sentence:  EQUAL

The constitution of the American Equal Rights Association (AERA) stated the organization's purpose:  "to secure Equal Rights to all American citizens, especially the right of suffrage, irrespective of race, color or sex."  It was a group that grew out of the National Women's Rights Convention at the 11th such convention, held in New York in 1866.

Susan B. Anthony (1820-1906) Elizabeth Cady Stanton (1815-1902) were both key social reformers and activists in the women's suffrage movement.  

hi huh

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.