A monarchy is where the king rules with power and nobody else gets a say.
Representative democracy is where each place state providence gets a say and everybody has an equal say
Help protest against the outbreak of civil war in America
A result of the Gibbo V. Ogden (1824) decision was that state could regulate commerce only within their borders. This was a landmark decision in which united state supreme that held the power to regulate interstate commerce. The landmark was considered decision with ripple effect that lasted for 1000 years.
I know the first one is the 16th century