In the summer of 1862, a president took time away from managing a brutal war to sign the Pacific Railway Act β the law that launched the transcontinental railroad across the American West. Which president signed it? Ulysses S. Grant Abraham Lincoln Andrew Johnson James Buchanan None Building east from Sacramento, the Central Pacific blasted through the Sierra Nevada with a workforce that was roughly 90 percent Chinese immigrant laborers, while the Union Pacific's largely Irish crews raced west across the plains. In April 1869, Central Pacific crews won a $10,000 bet by laying how much track in a single day? Just over 2 miles About 4 miles About 6 miles Just over 10 miles None On May 10, 1869, at Promontory Summit, Utah, the final spike joined the rails from east and west β and thanks to a telegraph wire, the entire country found out the moment it happened. What single-word message flashed across the nation? "DONE" "UNITED" "FINISHED" "GLORY" None Before 1883, American towns each kept their own local "sun time" β noon in one town was 12:07 in the next β which made train schedules a nightmare. Who finally carved the country into the four standard time zones we still use today? Congress The U.S. Naval Observatory The railroads Western Union None You may have heard the famous story that America's standard rail gauge β 4 feet, 8.5 inches between the rails β traces all the way back to the ruts worn by Roman chariot wheels. What's the real story? It's true β the measurement descends directly from Roman roads It came from the English coal-mine tramways that pioneered the first railways Abraham Lincoln chose the width personally It matches the axle width of the Conestoga wagon None Stumper. By the 1890s, the Pullman Palace Car Company's rolling hotels β velvet seats, chandeliers, gourmet dining β had made "Pullman" a household word for luxury travel. After founder George Pullman died in 1897, the company's presidency passed to the son of a famous American. Whose son was he? Ulysses S. Grant's Cornelius Vanderbilt's Abraham Lincoln's Mark Twain's None Time's up