The first fighting of the Revolution started in April of 1775 when Paul Revere road through the night to spread the news.  The Declaration of Independence, however, didn't happen until July of 1776, over a year after the war began.  

Everything else here is true.  America saw early victories at Fort Ticonderoga and Boston, but then the war took a turn for the worse, and over 2,500 Americans died at Valley Forge. The French, still angry over the French and Indian War, offered support to the Americans and were instrumental in changing the tide of the war. The Americans and the French trapped the British in Chesepeake Bay, and on September 3, 1783, the British prime minister resigned and officially recognized the United States. 

The ability of the President to veto a law passed by Congress is an example of the system of checks and balances that the founding fathers believed would help prevent any one branch of government from wielding too large a portion of control. In a further example of the system of checks and balances, Congress can overturn a Presidential Veto with a two-thirds majority vote in both Houses of Congress. 

The Albany Plan was proposed by Benjamin Franklin in the middle of the eighteenth century. Franklin called for the creation of a unified government to provide for the mutual defense and protection of the thirteen colonies. The representatives were motivated by a desire to better protect themselves against raids by Native American people and the French. The plan was rejected both by the colonial assemblies and by the British government—who feared that the Albany Plan would lead to further unification and weaken British control on the individual colonies. Many of the ideas expressed in the Albany Plan would resurface in the Articles of Confederation, following the end of the Revolutionary War. 

The Proclamation of 1763 was issued by Great Britain after the end of the French-Indian Wars, in which Britain gained a great deal of new territory in North America. It was passed to prevent colonists from settling west of the Appalachian Mountains. The purpose of the Proclamation was to re-establish positive trading rights with Native Americans, who were upset with the constant westward expansion of European settlers. 

The Ninth Amendment to the Constitution, included in the Bill of Rights, states that the people of the United States have rights that are not included in the Constitution. The framers of the Bill of Rights understood that the interpretation and viability of the Constitution would change over time, so designed it to be specifically elastic in an attempt to prevent future abuses of rights. 

The "three-fifths" compromise was a deal struck between Northern and Southern representatives to the Constitutional Convention in 1787. Southerners believed the full population of their states, including slaves, should be counted to determine representation in the House of Representatives. Northerners argued that slaves would never vote and that fully counting them would disproportionately represent the South in Congress. A compromise was agreed to with the following language, in Article I, Section 2 of the Constitution: "Representatives and direct Taxes shall be apportioned among the several States which may be included within this Union, according to their respective Numbers, which shall be determined by adding to the whole Number of free Persons, including those bound to Service for a Term of Years, and excluding Indians not taxed, three fifths of all other Persons." This clause was not taken out of the Constitution until the passage of the Fourteenth Amendment in 1868.

The Elastic clause states that the Federal government has the right to make any laws, even those outside of the ones specifically mentioned in the Constitution, if Congress deems the passage of these laws to be “necessary and proper.” As a corollary and counter to the Elastic clause, the Reserved Powers clause was added into the Bill of Rights as the Tenth Amendment. The Tenth Amendment states that any powers not reserved for the Federal government are the sole property of the States and of the People.

French exploration of the New World was motivated primarily by a desire to find a trade route to Asia. Much of the Eastern trade routes had been closed following the Ottoman Empire’s capture of Constantinople, and the French wanted to find a quicker route to Asia that did not involve passing through Ottoman territory or sailing around the horn of Africa. The French later founded colonies throughout the New World, particularly in Canada where they engaged in fur trading with the native population. 

Hernando de Soto was a Spanish conquistador who attempted to follow in his countrymen's path by exploring uncharted areas of North America. Beginning in Spanish held Florida, De Soto's expedition ventured across the present day Southeast of the United States. De Soto died of disease in present-day Arkansas, in 1542. His expedition continued into Texas and down towards New Spain (present-day Mexico).

After overthrowing a government seen as tyrannical in the Revolutionary War, the nascent United States of America adopted a loose agreement called the Articles of Confederation to govern itself. The Articles sat a single body, known as the Congress of the Confederation, with equal representation and no real executive authority. This light structure soon proved a burden to the young country, as they had no way to collect taxes, establish interstate trade, or raise any kind of national army. In 1787, delegates from all the states began meeting about revising the Articles, which eventually led to the writing and the adoption of the U.S. Constitution.