What did susan b. anthony do in 1872 to advance women's suffrage? she wrote a book about women's right. she supported the democratic candidate for president. she cast an illegal vote. she made a speech at a women's rights convention in seneca falls.

She made a speech at a women's rights convention in Seneca Falls is the answer.

She cast an illegal vote.

Explanation: Susan B. Anthony on November 5, 1872 at a time when women did not have the right to vote, voted for a national presidential election illegally (she voted for Republican Ulysses S. Grant), two weeks later she was arrested.

the treaty of brest-litovsk was a peace treaty signed on 3 march 1918 between the new bolshevik government of russia and the central powers (german empire, austria-hungary, bulgaria, and the ottoman empire), that ended russia's participation in world war i.