20h 8min, jul 31, 1777 y - The Marquis de Lafayette arrives in America. This was important because Marquis de Lafayette was a French general and Political leader so, he had the combat and commanding experienceHe was also enthusiastic about on the Continental Congress appointed Lafayette as major general in 1777 Lafayette did a lot for the Americans and the American Revolution He is still honored today. Lafayette did a lot for America, so, he himself is important