April 11 in History

Napoleon abdicated unconditionally on April 11, 1814, signing the Treaty of Fontainebleau that exiled him to Elba, a small Mediterranean island off the coast of Italy. The treaty granted him sovereignty over Elba with an annual income of two million francs from the French government, a personal guard of 400 soldiers, and the title of Emperor. His wife Marie-Louise received the Duchy of Parma. The terms were remarkably generous for a man who had plunged Europe into 12 years of war. Napoleon arrived on Elba in May 1814 and immediately began improving the island's infrastructure, mining industry, and agriculture. Within ten months he grew restless, escaped with 1,000 men, and marched on Paris to begin the Hundred Days.

William III of Orange and Mary II of England were crowned on April 11, 1689, but only after accepting the Declaration of Rights, later codified as the Bill of Rights 1689. This document permanently limited royal power by prohibiting the monarch from suspending laws, levying taxes, or maintaining a standing army without parliamentary consent. It guaranteed free elections, freedom of speech in Parliament, and prohibited cruel and unusual punishments. William and Mary had been invited to invade England by seven Protestant nobles who opposed the Catholic James II. Their "Glorious Revolution" established the principle that Parliament, not the monarch, held ultimate sovereignty. The American Bill of Rights and the Universal Declaration of Human Rights both trace their lineage to this document.

Spain formally ceded Puerto Rico to the United States on April 11, 1899, under the terms of the Treaty of Paris signed on December 10, 1898, ending the Spanish-American War. Spain had ruled the island for 405 years. The United States immediately established a military government, then transitioned to civilian governance under the Foraker Act of 1900. Puerto Ricans received US citizenship in 1917 through the Jones-Shafroth Act, just in time to be drafted for World War I. The island's political status remains unresolved. Six referendums have been held, with statehood winning narrow majorities in the most recent, but Congress has never acted on the results. Puerto Rico's 3.2 million US citizens cannot vote for president and have no voting representation in Congress.

American troops of the 6th Armored Division and the 80th Infantry Division liberated Buchenwald concentration camp on April 11, 1945, finding 21,000 starving survivors among piles of corpses. The camp, located near Weimar, had processed an estimated 250,000 prisoners since 1937, killing 56,000 through execution, medical experiments, forced labor, and deliberate starvation. General Eisenhower ordered every American soldier in the area to visit the camp, saying he wanted firsthand witnesses in case anyone ever claimed it did not happen. He also brought journalists and members of Congress. The footage and photographs from Buchenwald became central evidence at the Nuremberg trials and shaped the world's understanding of the Holocaust.

President Lyndon Johnson signed the Civil Rights Act of 1968 on April 11, exactly one week after Martin Luther King Jr.'s assassination in Memphis. Title VIII of the act, known as the Fair Housing Act, prohibited discrimination in the sale, rental, and financing of housing based on race, color, religion, sex, or national origin. King had been fighting for fair housing in Chicago in 1966, where he faced some of the most violent opposition of his career. The law was weaker than advocates wanted: enforcement mechanisms were limited, and it exempted single-family homes sold without a broker. Real estate redlining and steering persisted for decades. The act was strengthened by amendments in 1988 that added disability and familial status as protected categories.

The surrender of Edo Castle on April 11, 1868, was negotiated between Saigo Takamori, commander of the imperial forces, and Katsu Kaishu, the Tokugawa shogunate's chief minister, sparing the city and its million inhabitants from destruction. Saigo had marched an army of 50,000 to Edo's gates, and the shogun Yoshinobu had already fled. Katsu argued that burning Edo would only strengthen resistance in the north and deprive the new government of Japan's administrative center. The peaceful handover accelerated the Meiji Restoration, allowing Japan to modernize without the devastation of prolonged civil war. Saigo later rebelled against the very government he had helped create, dying in the Satsuma Rebellion of 1877.