Why are articles of confederation historically important?

The Articles of Confederation served as the written document that established the functions of the national government of the United States after it declared independence from Great Britain.

Explanation:

The Articles of Confederation and Perpetual Union was an agreement among the 13 original states of the United States of America that served as its first constitution. ... A guiding principle of the Articles was to preserve the independence and sovereignty of the states.

ok sorry the answer is a. by their religion

in mcculloch v. maryland (1819) the supreme court ruled that congress had implied powers under the necessary and proper clause of article i, section 8 of the constitution to create the second bank of the united states and that the state of maryland lacked the power to tax the bank.

gibbons v. ogden, (1824), was a landmark decision in which the supreme court of the united states held that the power to regulate interstate commerce, granted to congress by the commerce clause of the united states constitution, encompassed the power to regulate navigation.