A Timeline of Transformative Ideas
Explore pivotal moments that reshaped human understanding of the natural world, from Newton's laws of motion to Einstein's theory of relativity. Click on any event to learn more about these groundbreaking discoveries.
Battles of Lexington and Concord
The first military engagements of the American Revolutionary War, marking the outbreak of armed conflict between Great Britain and thirteen of its colonies on the North American mainland.
Declaration of Independence
The Continental Congress formally declared the thirteen American colonies independent from British rule, establishing the United States of America as a sovereign nation.
Washington Crosses the Delaware
General Washington's daring nighttime crossing of the icy Delaware River led to a surprise attack on Hessian forces at Trenton, revitalizing the American cause.
Winter at Morristown
The Continental Army endured an even harsher winter at Morristown than Valley Forge, with deep snow and severe cold testing American resolve.
Battle of Saratoga
The American victory at Saratoga proved to be the major turning point in the Revolutionary War, convincing France to enter the war as an American ally.
Valley Forge Winter Encampment
The Continental Army endured brutal winter conditions at Valley Forge, emerging as a disciplined and effective fighting force under the training of Baron von Steuben.
John Paul Jones and the Bonhomme Richard
Naval commander John Paul Jones achieved a stunning victory against HMS Serapis, uttering his famous defiant words when asked to surrender.
Benedict Arnold's Treason
American General Benedict Arnold's attempted betrayal of West Point to the British shocked the nation and became synonymous with treason in American culture.
Battle of Yorktown
The decisive victory of American and French forces over the British at Yorktown effectively ended major military operations in the Revolutionary War.
Treaty of Paris
The Treaty of Paris officially ended the Revolutionary War and established the United States as an independent nation recognized by Great Britain and the world powers.
Storming of the Bastille
Parisian revolutionaries stormed the Bastille fortress-prison, a powerful symbol of royal tyranny, marking the beginning of the French Revolution.
Declaration of the Rights of Man and Citizen
The National Assembly adopted the Declaration of the Rights of Man and of the Citizen, establishing fundamental human rights and the principles of the French Revolution.
Execution of King Louis XVI
King Louis XVI was executed by guillotine in Paris, marking the end of more than a thousand years of continuous French monarchy and shocking European royalty.