This Battle marked the last major offensive of the Confederates:

On the third day of the Battle of Gettysburg, Confederate General Robert E. Lee's last attempt at breaking the Union line ends in disastrous failure, bringing the most decisive battle of the American Civil War to an end.

Explanation:

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.