The delegates at the Constitutional Convention decided to create three branches of government because they did not want any one branch to become too powerful. Each branch has different powers and can limit the power of the other branches. This is known as the system of checks and balances. hope i helped you :)
It was the "Sixteenth Amendment" that established a federal income tax in 1913, since this allows the federal government to impose taxes on incomes without approval from the states.
