October 9 in History

Four Catholic nations skipped ten days overnight as Pope Gregory XIII's calendar reform took effect, jumping directly from October 4 to October 15 to correct centuries of accumulated drift in the Julian calendar. Protestant and Orthodox countries refused the change for decades or centuries, creating a patchwork of dates across Europe that complicated diplomacy and trade.

The Portuguese sent 20,000 soldiers into the Kandyan highlands to capture the kingdom's capital. They marched in three columns through jungle and mountains. The Kandyans let them reach Balane, then attacked from all sides. The Portuguese army was annihilated in a single day. Fewer than 100 men escaped. Portugal never recovered its position in Sri Lanka. The Kandyan kingdom stayed independent for another 200 years.

Roger Williams was banished from Massachusetts in 1635 for arguing that civil government had no authority over individual conscience and that colonists had no right to Native land without purchasing it. The General Court ordered him deported to England. He fled into a blizzard instead, surviving 14 weeks in the wilderness with help from Wampanoag and Narragansett friends. He founded Providence on land he bought from the Narragansett. Massachusetts spent the next 200 years becoming what Williams said it should've been.

The massacre in Batavia lasted two weeks. Dutch colonial forces and armed slave groups killed 10,000 ethnic Chinese — merchants, laborers, anyone who looked Chinese. The governor-general had spread rumors that the Chinese were planning a rebellion. They weren't. The violence sparked a two-year war across Java. The Dutch won but lost their most productive taxpayers. Chinese merchants never trusted the Dutch again.

A desperate Franco-American assault on British defenses at Savannah collapsed under fierce fire, leaving hundreds dead and the siege abandoned. This catastrophic failure dashed hopes for a quick Southern victory and forced American forces to retreat, prolonging the war's bloody southern campaign by years.

American sailors captured HMS Detroit and HMS Caledonia on Lake Erie in 1812 by rowing quietly alongside them at 3 a.m. and boarding before the British crews woke up. Lieutenant Jesse Elliott led 100 men in two boats. They took both ships without firing a shot. Detroit had been the American brig Adams before the British captured her at Detroit two months earlier. Elliott sailed her back to American lines and renamed her. She'd switched sides twice in ten weeks.

John Henry Newman converted to Catholicism in 1845 after writing an essay on early church doctrine that convinced him the Church of England was wrong and he'd been wrong for 44 years. He'd been an Anglican priest and Oxford professor, one of the most prominent religious voices in England. His conversion stunned Victorian society — like a cardinal joining a megachurch today. He was ordained a Catholic priest in Rome a year later. The Anglicans never forgave him. The Catholics made him a saint.

Union troops repelled a Confederate nighttime raid on Fort Pickens at Santa Rosa Island, preserving one of the few Federal strongholds in the Deep South. Holding the fort denied Confederates control of Pensacola Bay and maintained a Union naval presence along the Gulf Coast throughout the war.

Union cavalrymen under Philip Sheridan shattered Confederate resistance at Toms Brook, turning a tactical skirmish into a rout that decimated the enemy's mounted strength. This crushing defeat ended Confederate hopes of holding the Shenandoah Valley and cleared the path for Union forces to destroy the region's agricultural resources.

An accidental bomb blast ignites the Wuchang Uprising, sparking a chain reaction that topples the Qing dynasty and ends two millennia of imperial rule in China. This explosion forces revolutionaries to act immediately, transforming a failed plot into the Xinhai Revolution that establishes the Republic of China.