November 18 in History

A cartoon mouse whistled at the wheel of a steamboat, and the audience at the Colony Theatre in New York City heard something no moviegoer had ever heard before: a fully synchronized soundtrack built into an animated film. Steamboat Willie was not the first cartoon with sound, but it was the first to synchronize every whistle, clang, and musical note precisely to the on-screen action, and the effect was electrifying. The seven-minute short made Mickey Mouse an instant star and launched the most powerful entertainment empire of the twentieth century. Walt Disney and his chief animator Ub Iwerks had created Mickey Mouse earlier that year after losing the rights to their previous character, Oswald the Lucky Rabbit, in a contract dispute with distributor Charles Mintz. Disney vowed never again to create a character he did not own. The first two Mickey cartoons, Plane Crazy and The Gallopin' Gaucho, were silent films that failed to find a distributor. Disney, who had been experimenting with sound synchronization, decided to gamble everything on a third cartoon built from the ground up around a synchronized soundtrack. The technical challenge was enormous. Previous attempts to add sound to animation had simply overlaid music onto existing films. Disney wanted the sound to match the action frame by frame. He hired composer Carl Stalling and used a metronome-like system to keep the animation perfectly in tempo with the pre-recorded music. The recording session itself nearly ended in disaster when the musicians couldn't keep tempo with the visual cues, requiring multiple takes and a last-minute switch to a simpler conducting method. The result was a revelation. Mickey steered a boat, pulled a cat's tail to make it yowl, used a cow's teeth as a xylophone, and cranked a goat's tail like a music box. Every sound matched perfectly. Audiences were delighted by the comic timing that synchronized sound made possible.

Niels Bohr escaped Nazi-occupied Denmark in October 1943 in the cargo hold of a small fishing boat, then flew to Britain in an unpressurized aircraft that nearly killed him. He advised the Manhattan Project under the alias Nicholas Baker. He'd already won the Nobel Prize in 1922 for explaining how electrons arrange themselves around an atom's nucleus. He spent the rest of his life trying to prevent the weapon his physics had made possible.

American and Canadian railroads simultaneously adopted five standardized time zones, replacing a bewildering patchwork of more than 300 local times that had made scheduling trains an exercise in organized confusion. The "Day of Two Noons," as newspapers called November 18, 1883, was the moment the United States began thinking of time as something uniform and universal rather than local and approximate. Before standard time, every city and town set its clocks by the sun. When it was noon in Washington, D.C., it was 12:08 in Philadelphia, 12:12 in New York, and 11:48 in Richmond. This mattered little when the fastest transportation was a horse, but railroads connected these cities in hours, and the timetable chaos was dangerous. A single railroad might operate on dozens of different local times. The Pittsburgh station reportedly used six different clocks. Passengers missed connections. Dispatchers struggled to keep trains on the same stretch of track from colliding. William Frederick Allen, secretary of the General Time Convention, an association of railroad managers, championed the solution. He proposed dividing the continent into four zones, each covering fifteen degrees of longitude and differing by exactly one hour. A fifth zone covered the easternmost provinces of Canada. Allen spent years persuading skeptical railroad executives and politicians that the system would work. The transition happened at noon on November 18. In the Eastern zone, clocks were adjusted to match the time at the 75th meridian. Cities that had been slightly ahead set their clocks back; those behind moved them forward. In some places, the adjustment was only a few minutes. In others, particularly at zone boundaries, clocks jumped by nearly an hour.

Jean-Jacques Dessalines led an army of formerly enslaved men and women against the last French stronghold in Saint-Domingue, storming the fortified position at Vertieres outside Cap-Francais in a battle that broke Napoleon's grip on the colony and cleared the path for the creation of Haiti, the first independent Black republic in the Western Hemisphere and only the second nation in the Americas to throw off European colonial rule. The Haitian Revolution had been raging for twelve years, beginning with a massive slave uprising in August 1791. The conflict had already consumed multiple colonial armies. Toussaint Louverture, the revolution's most brilliant military leader, had unified the colony under his authority by 1801, only to be captured through treachery by Napoleon's forces in 1802 and imprisoned in France, where he died in a cold cell in the Jura Mountains. Napoleon had sent his brother-in-law, General Charles Leclerc, with 40,000 soldiers to restore slavery and French control. The expedition was initially successful, but yellow fever devastated the French army with a ferocity that no battlefield could match. Leclerc himself died of the disease in November 1802. His successor, Rochambeau, turned to campaigns of extermination against the Black population, using bloodhounds imported from Cuba and drowning captives in the harbor. The atrocities unified resistance. Dessalines, Louverture's most aggressive lieutenant, rallied former slaves, free people of color, and even some white colonists under a single command. At Vertieres on November 18, 1803, his forces attacked fortified French positions in waves, absorbing devastating casualties but refusing to retreat. The battle was decided by sheer determination. French commander Rochambeau, with his forces reduced by disease and combat to a fraction of their original strength, requested a ten-day truce to evacuate.