This Day in History
Explore 366 pivotal moments in American civic history — from the signing of the Declaration to landmark Supreme Court decisions.
September Events
Germany Invades Poland; U.S. Neutrality Debate Intensifies
Germany invaded Poland, beginning World War II in Europe. President Roosevelt declared American neutrality but began working to revise the Neutrality Acts to allow arms sales to the Allies, sparking intense debate between interventionists and isolationists.
The debate over American involvement in World War II tested fundamental questions about the nation's role in the world and the balance between democratic deliberation and executive leadership in national security.
Japan Signs Formal Surrender
Japanese officials signed the formal instrument of surrender aboard the USS Missouri in Tokyo Bay, officially ending World War II. General Douglas MacArthur presided over the ceremony, attended by representatives of all Allied nations.
The formal end of World War II marked the beginning of American global leadership and the postwar order, including the United Nations, NATO, and the reconstruction of former enemy nations as democracies.
Treaty of Paris Signed
American negotiators Benjamin Franklin, John Adams, and John Jay signed the Treaty of Paris with Great Britain, formally ending the Revolutionary War. The treaty recognized American independence and established boundaries stretching from the Atlantic to the Mississippi River.
The Treaty of Paris secured American independence through diplomacy and established the territorial foundation for the new republic, demonstrating the young nation's ability to negotiate as a sovereign equal.
Geronimo Surrenders
Apache leader Geronimo surrendered to U.S. forces in Arizona, marking the end of the major American Indian Wars. His surrender concluded decades of conflict between the U.S. government and Indigenous peoples over land, sovereignty, and way of life.
Geronimo's surrender represented the culmination of the federal government's displacement of Indigenous peoples, raising questions about justice, sovereignty, and reconciliation that continue to shape American civic life.
First Continental Congress Convenes
Delegates from twelve of the thirteen colonies gathered in Philadelphia at Carpenters' Hall for the First Continental Congress, called in response to the Intolerable Acts. The Congress petitioned King George III for redress and agreed to a boycott of British goods.
The First Continental Congress was the first unified colonial response to British authority, establishing the practice of intercolonial cooperation that would lead to independence and eventual union.
Marquis de Lafayette Born
The Marquis de Lafayette was born in Auvergne, France. At age 19, he would sail to America to fight in the Revolutionary War, becoming one of George Washington's most trusted officers and a hero of both the American and French revolutions.
Lafayette's service to the American cause symbolized the international dimensions of the struggle for liberty and cemented the Franco-American alliance that proved essential to winning independence.
Little Rock Nine Refused Entry to School
Nine African American students attempted to enter Little Rock Central High School in Arkansas but were blocked by the Arkansas National Guard under orders from Governor Orval Faubus. President Eisenhower would later send the 101st Airborne Division to escort the students.
The Little Rock crisis was a defining moment in the implementation of Brown v. Board of Education, demonstrating that federal authority would be used to enforce constitutional rights over state resistance to desegregation.
Pledge of Allegiance First Published
The Pledge of Allegiance was first published in The Youth's Companion magazine, written by Francis Bellamy for the 400th anniversary of Columbus's arrival. The original text read "I pledge allegiance to my Flag" without "under God," which was added by Congress in 1954.
The Pledge became a daily ritual in American schools and civic life, though its evolution has prompted ongoing debates about patriotism, free speech, and the separation of church and state.
California Admitted as 31st State
California was admitted as a free state as part of the Compromise of 1850, which also included a stricter Fugitive Slave Act and popular sovereignty in the Utah and New Mexico territories. The compromise attempted to maintain the balance between free and slave states.
California's admission and the Compromise of 1850 temporarily averted a national crisis over slavery, but the compromises proved unstable and contributed to the tensions that led to the Civil War a decade later.
Battle of Lake Erie
Commodore Oliver Hazard Perry led American forces to a decisive victory over the British fleet in the Battle of Lake Erie during the War of 1812. Perry's famous dispatch, "We have met the enemy and they are ours," announced the first capture of an entire British naval squadron.
The Battle of Lake Erie secured American control of the Great Lakes and the Northwest Territory, protecting the nation's borders and demonstrating that the young republic could defend its sovereignty.
September 11 Attacks
Terrorists hijacked four commercial airplanes, crashing two into the World Trade Center in New York City, one into the Pentagon, and one into a field in Shanksville, Pennsylvania after passengers fought back. Nearly 3,000 people were killed in the deadliest attack on American soil.
The September 11 attacks transformed American foreign policy and civil liberties debates, leading to the Department of Homeland Security and ongoing discussions about the balance between security and freedom.
Battle of North Point
American forces engaged British troops at the Battle of North Point near Baltimore during the War of 1812, delaying the British advance toward the city. The combined defense of Baltimore by land and sea at Fort McHenry would inspire Francis Scott Key to write "The Star-Spangled Banner."
The defense of Baltimore was a turning point in the War of 1812, boosting American morale and producing the national anthem, which celebrates the resilience of the republic under threat.
Congress Sets Date for First Presidential Election
The Confederation Congress passed a resolution setting the date for the first presidential election and the start of operations under the new Constitution. The first Wednesday in January 1789 was set for choosing presidential electors, with the new government to commence on March 4.
This resolution marked the peaceful transition from the Articles of Confederation to the Constitution, establishing the precedent for orderly transfers of governmental authority that defines American democracy.
Star-Spangled Banner Written
Francis Scott Key wrote "The Defence of Fort M'Henry" after witnessing the British bombardment of Fort McHenry in Baltimore Harbor during the War of 1812. Set to music, the poem became "The Star-Spangled Banner" and was designated the national anthem by Congress in 1931.
The national anthem captures a moment of democratic resilience, celebrating the survival of the American republic against foreign attack and becoming an enduring symbol of national unity.
William Howard Taft Born
William Howard Taft was born in Cincinnati, Ohio. He is the only person in American history to serve as both President (1909-1913) and Chief Justice of the Supreme Court (1921-1930), heading two of the three branches of government.
Taft's unique service in both the executive and judicial branches illustrates the interconnection of American governmental institutions and the principle of separation of powers.
Mayflower Departs England
The Mayflower set sail from Plymouth, England, carrying 102 passengers seeking religious freedom and economic opportunity in the New World. After 66 days at sea, the Pilgrims would establish Plymouth Colony and draft the Mayflower Compact.
The Mayflower voyage and the subsequent Mayflower Compact, in which the Pilgrims agreed to govern themselves by majority rule, planted early seeds of democratic self-governance in America.
Constitution Signed
Delegates to the Constitutional Convention signed the completed Constitution in Philadelphia. The document would then go to the states for ratification.
The signing of the Constitution marked the creation of the framework for American government that continues to this day. September 17 is now celebrated as Constitution Day.
Fugitive Slave Act of 1850 Signed
President Millard Fillmore signed the Fugitive Slave Act, requiring citizens and officials in free states to assist in the capture and return of escaped enslaved people. The law imposed severe penalties on anyone who aided fugitives and denied accused persons the right to a jury trial.
The Fugitive Slave Act galvanized the abolitionist movement and deepened the sectional crisis by forcing Northerners to confront the reality of slavery, contributing to the tensions that led to the Civil War.
Washington's Farewell Address Published
President George Washington's Farewell Address was published in the American Daily Advertiser in Philadelphia. Washington warned against political factions, foreign entanglements, and the accumulation of debt, and affirmed the importance of national unity.
Washington's Farewell Address remains one of the most important documents in American political thought, offering enduring guidance on the dangers of partisanship and the importance of civic virtue.
Chester Arthur Becomes President
Chester A. Arthur was sworn in as the 21st President following the death of James Garfield from an assassin's bullet. Despite his background in machine politics, Arthur championed and signed the Pendleton Civil Service Reform Act of 1883.
Arthur's presidency demonstrated how the office can transform its holder. His signing of civil service reform replaced the corrupt spoils system with merit-based government hiring, professionalizing the federal workforce.
Federal Judiciary Established
Congress passed the Judiciary Act of 1789, establishing the federal court system including the Supreme Court with a Chief Justice and five Associate Justices, along with district and circuit courts. President Washington nominated John Jay as the first Chief Justice.
The Judiciary Act created the third branch of government as a functioning institution, establishing the federal court structure that would become the guardian of constitutional rights and the rule of law.
Preliminary Emancipation Proclamation Issued
President Abraham Lincoln issued the preliminary Emancipation Proclamation, declaring that all enslaved people in states still in rebellion on January 1, 1863 would be "thenceforward, and forever free." The proclamation gave Confederate states 100 days to cease their rebellion.
The preliminary Emancipation Proclamation signaled a fundamental shift in the purpose of the Civil War from preserving the Union to ending slavery, transforming the moral character of the conflict.
John Paul Jones Declares "I Have Not Yet Begun to Fight"
During a naval battle off the coast of England, Captain John Paul Jones, commanding the Bonhomme Richard against the HMS Serapis, reportedly declared "I have not yet begun to fight!" when asked to surrender. He captured the British ship despite his own vessel sinking.
Jones's defiant declaration became a rallying cry of American determination and naval tradition, symbolizing the revolutionary spirit that an outmatched people could prevail through courage and perseverance.
First Attorney General Confirmed
The Senate confirmed Edmund Randolph as the first Attorney General of the United States. Randolph, who had been governor of Virginia and a delegate to the Constitutional Convention, served as the principal legal advisor to President Washington.
The establishment of the Attorney General position created the foundation for the Department of Justice and the principle that the federal government's actions must be guided by legal counsel and constitutional interpretation.
Eisenhower Sends Troops to Little Rock
President Dwight D. Eisenhower ordered the 101st Airborne Division to Little Rock, Arkansas, to escort nine African American students into Central High School after Governor Faubus used the National Guard to block desegregation. It was the first time since Reconstruction that a president sent federal troops to protect civil rights.
Eisenhower's deployment of federal troops demonstrated that the executive branch would enforce Supreme Court rulings on civil rights, establishing the supremacy of federal constitutional law over state resistance.
Congress Submits Bill of Rights to States
Congress approved the final text of twelve proposed amendments to the Constitution and submitted them to the states for ratification. Ten of the twelve were ratified by 1791 and became known as the Bill of Rights.
The submission of the Bill of Rights fulfilled a key promise made during the ratification debates, ensuring constitutional protection for individual liberties including freedom of speech, religion, and the press.
Warren Commission Report Released
The Warren Commission, chaired by Chief Justice Earl Warren, released its 888-page report concluding that Lee Harvey Oswald acted alone in assassinating President John F. Kennedy. The report examined the assassination in exhaustive detail but generated enduring public skepticism.
The Warren Commission Report and the debates it sparked reflect the importance of government transparency and public trust in democratic institutions, themes that continue to resonate in American civic life.
Congress Sends Constitution to States
The Confederation Congress voted to transmit the newly drafted Constitution to the state legislatures for ratification by specially elected conventions. The resolution did not endorse or oppose the document, leaving the decision to the people through their state conventions.
By sending the Constitution to the people through ratifying conventions rather than state legislatures, Congress honored the principle that legitimate government derives its authority from the consent of the governed.
U.S. Army Established
Congress established the United States Army as the country's first permanent military force, authorized at a strength of several hundred soldiers. The act reflected the Founders' careful balance between the need for national defense and their wariness of standing armies.
The establishment of the Army under civilian control of Congress embodied the constitutional principle that the military serves the republic, not the other way around, a foundational concept of American governance.
First U.S. Patent Granted
The first U.S. patent was granted to Samuel Hopkins of Vermont for a process of making potash, an ingredient used in fertilizer and soap. The patent board included Secretary of State Thomas Jefferson, Secretary of War Henry Knox, and Attorney General Edmund Randolph.
The patent system, rooted in the Constitution's clause empowering Congress to promote science and useful arts, has been a driving force behind American innovation and economic growth from the founding era to the present.