What did Elizabeth Cady Stanton and Susan B. Anthony have in common?

They were both very important women in the US women's suffrage movement.

Explanation:

Stanton created the Declaration of Sentiments at the Seneca Falls Convention, which was super significant to the strength of the movement.

Anthony helped create many councils and leagues to support women's suffrage, like the International Council of Women.

Stanton and Anthony also worked together to fight for women's suffrage.