How did early muslims conquerors treat jews and christians?

This is not my answer but heres what someone smart i know said
"Christians and Jews were viewed by Muslims as "People of the Book." They were treated well, were not forced to convert to Islam and kept their individual rights as people, however, they had to pay a special tax called "jizya."  Some Jews even held government positions and prospered under Muslim rule." 
-tuniss