Federalism is the division governments, another word to describe federalism is O lanes
O Levels
O Groups

Levels can perfectly define federalism because it has many different parts i.e. provincial, state, cantonal, territorial or other sub-unit governments and they allhave different powers.

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on the succession of solomon's son, rehoboam, around 930 bce, the biblical account reports that the country split into two kingdoms: the kingdom of israel (including the cities of shechem and samaria) in the north and the kingdom of judah (containing jerusalem) in the south.