On October 18, 1898, US troops raised the American flag over Puerto Rico for the first time, marking the island’s transition to American control. The event followed Spain’s defeat in the Spanish-American War and began a new era of US governance in the Caribbean.
On October 3, 1990, East and West Germany were officially reunited after decades of division. This event marked the end of one of the most striking symbols of the Cold War—the separation of a nation and its people. For Germans, it was not only a political event, but also an emotional and cultural homecoming that reshaped Europe.
After more than a decade of brutal fighting and over 20,000 casualties, Mexico officially gained its independence from Spain on September 27, 1821. This moment marked the end of three centuries of Spanish rule. The road to independence, however, was long, complicated, and filled with both triumphs and setbacks.
On September 17, 1787, 39 delegates from 12 states signed the US Constitution, laying the groundwork of our country’s government. Much of the document was inspired by the ideas of James Madison, leading him to be called the “Father of the Constitution.”
Eight days after being shot by an assassin at the Pan-American Expo, President McKinley died on September 14, 1901. His passing sent a wave of grief across the nation, as more than 200,000 people attended memorial ceremonies in Washington, DC and his home state of Ohio.
On September 13, 1788, New York City was established as America’s first capital under the Constitution of the United States. This marked the beginning of a new era for the country, as the states moved from the loose Articles of Confederation to the stronger federal government outlined in the US Constitution.
On September 11, 1935, workers broke ground on the 469-mile Blue Ridge Parkway near Cumberland Knob in North Carolina. Though it would take more than 50 years to complete, it’s been the most visited National Park Service site nearly every year since 1946, earning the nickname, “America’s Favorite Drive.”
On September 9, 1966, President Lyndon B. Johnson signed into law the National Traffic and Motor Vehicle Safety Act. This act was a landmark piece of legislation that changed the way Americans thought about cars and driving.
After more than eight years of fighting, the American Revolutionary War came to an end on September 3, 1783, with the signing of the Treaty of Paris.