Final answer:
The Evolutionary Theory describes the origin of governments as starting from families and tribes, which then evolved into more complex forms of governance.
Step-by-step explanation:
The theory that posits governments originated with families (tribes) and then developed into formal governments is known as the Evolutionary Theory. This framework suggests that as families grew and formed tribes, the complexities of managing larger groups of people led to the formation of more structured systems of governance. Over time, these structures evolved into the formalized governments that manage societies today, progressing from simple leadership patterns based on strength or wisdom to complex institutions with formal rules and regulations.