Carmichael was known as an Honorary Prime Minister to the Black Panther Party, a revolutionary self defense group. They fought back with violence, which opposed they views of King. They simply did not agree because King valued a nonviolent approach while Carmichael believed violence should be incited in defense
First Islam is a noun and means the religion of the Muslims, a monotheistic faith regarded as revealed through Muhammad as the Prophet of Allah. Another meaning is the Muslim world.
now signify is a verb and means be an indication of. Some synonyms are be evidence of, be a sign of, mark, signal, mean, spell, be symptomatic of, herald, indicate; literary betoken
250,000 votes were in the northern states in 1876