Ulmayekiram,There was a need for four imams because there were four schools of thought in Islam.

Assalamu alaikum wa rahmatullahi wa barakatuhu Dear Ulmayekiram, My question is as follows: 1) Why there was need for creations of 4 imams ? for ex. Hanifi, Shafayi, Humbali, Maliki 2)Whether such above indication (point no. 1)were given by our prophet ?(sallalahu alaihiwasallam). 3)Whom we have to follow our sahaba or imams for sunnah ? 4)What is significane of Imams(point no. 1) in Islam. 5)In future will we be getting any more Imams? I would be very grateful to you, knowing the answers of above questions. Jazhakumullahu kairah