Umar was a great cailph. He appointed governors, made taxation fair, and used charity to help poor, sick, and orphaned muslims. Unfortunately, he died from old age and sickness. As he was dying , Umar trusted six of his followers to decide on his successor.
Umar talking to people while alive
Who will be Umar's successor?
POOR UTHMAN WAS KILLED AS HE PRAYED
Ali was finally caliph in the end. Unfortunately, he died so M'awiya became caliph. Most people didn't like that so they were extremely bitter. There was a feud between the ones who thought the next caliph had to be a relative of Muhammad (Shi'a) and the ones who believed the next caliph could be anyone worthy (Sunni).