On St. Crispin's Day, roughly 6,000 English soldiers, exhausted and dysentery-ridden after a long march, faced a French army several times their size. Longbowmen loosed thousands of arrows into the packed, armored French vanguard, which bogged down in mud and collapsed under its own weight. French losses, including much of the nobility, dwarfed English casualties, and the victory became legend, immortalized centuries later in Shakespeare's Henry V.

During the Battle of Balaclava in the Crimean War, a miscommunicated order sent the British Light Brigade galloping straight down a valley into Russian guns positioned on three sides. The charge captured the Russian position briefly but at catastrophic cost, with roughly 118 killed and over 100 wounded. The suicidal futility of the attack, immortalized in Tennyson's poem, became a byword for military incompetence and bravery misapplied.

Pablo Ruiz Picasso entered the world in Málaga, the son of a painter and drawing instructor who recognized his son's talent early. By his teens Picasso was already outpacing his own father's technical skill, and he would go on to co-found Cubism, produce Guernica, and leave behind an estimated 50,000 artworks across an astonishingly varied career spanning eight decades.

By the old Julian calendar then used in Russia, this was October 25 — the day Bolshevik Red Guards, sailors, and soldiers seized railway stations, bridges, and the telephone exchange with barely a shot fired, isolating the Provisional Government in the Winter Palace. Alexander Kerensky fled the capital. The bloodless coup in Petrograd set off a civil war and installed a communist government that would rule Russia and later the USSR for seven decades.

Following the April 1964 union of newly independent Tanganyika and the island nation of Zanzibar after its own revolution, the merged state formally took the name United Republic of Tanzania on this date. Julius Nyerere, Tanganyika's president, became Tanzania's first president, pursuing a distinctive African socialist path known as Ujamaa that would define the country's politics for decades.

Roughly 7,000 US troops, joined by small Caribbean allied forces, invaded Grenada following the execution of Prime Minister Maurice Bishop and the installation of a hardline military council. The Reagan administration cited the safety of American medical students and fears of Cuban-Soviet influence. Resistance from Grenadian and Cuban forces was heavier than expected but collapsed within days; the operation drew UN condemnation but was popular domestically.

Following the October 5 plebiscite in which 55.99% of Chileans voted 'No' to extending Augusto Pinochet's rule, the final certified results in late October confirmed the outcome and set in motion Chile's return to democracy. Pinochet, who had ruled since the 1973 coup against Salvador Allende, was compelled by his own constitution to allow free elections, held the following year, ending fifteen years of military dictatorship.