1. Yorktown && Treaty of Paris
2. a) allowed the 13 states to present a unified front when dealing with the European powers,
b) Congress could make decisions under the articles but had no power to enforce them.
c) Congress was also denied the power to regulate commerce, and as a result, the states fought over trade as well.
3. France played a key role in the American Revolutionary War. After the Americans captured a British army, France recognized and allied itself with them in 1778, declared war on Britain, provided money and material to arm the new republic, and sent an army to the United States. French intervention made a decisive contribution to the U.S. victory in the war. Motivated by a long-term rivalry with Britain and by revenge for its territorial losses during the French and Indian War, France began secretly sending supplies in 1775. Spain and the Netherlands joined France, making it a global war in which the British had no major allies. France obtained its revenge, but materially it gained little and was left with over 1 billion lives in debts that seriously weakened the government on the eve of the French Revolution.
4. Early design of great seal.
5. They don't represent anything. Some have it and some do not. The ones that do have it are actually drawn wrong.
Hope i helped!