The campaign for woman suffrage in the U.S. began with the Seneca Falls Convention in 1848. Sixty years later, however, women could vote in only four states: Colorado, Utah, Idaho and Wyoming. In 1910 the state of Washington voted nearly two to one for woman suffrage, energizing the movement in other states. Meanwhile, in contrast, the movement in Great Britain under such leaders as Emmeline Pankhurst had moved from mass meetings and marches to arson, violence and hunger strikes.