It originated in Tsarist Russia as a support organization for political prisoners. Their symbol is a black cross, with the upwards-facing line being replaced with a raised fist, a symbol also associated with anarchism, defiance of authority, and personal empowerment (black power, youth power, women's liberation, American Indian Movement, International Socialist Organization, 'power to the people', etc...). The fist also represents union, as "many weak fingers can come together to create a strong fist".