Science & technology

The first US transcontinental railroad is completed

10 May 1869

On 10 May 1869, at Promontory Summit in Utah Territory, a golden spike was driven to join the Central Pacific Railroad, built eastwards from Sacramento mainly by Chinese immigrant labourers, and the Union Pacific, built westwards by Irish and civil-war veterans. The journey from New York to San Francisco, which took months by wagon or ship, was cut to about a week. The railroad opened the Great Plains to settlement, devastated the buffalo herds that the Plains nations depended on, and created standard time zones in 1883 to run the trains.

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This moment belongs to the Industrial era (1760 CE to 1914 CE), steam, factories and revolutions. You can also browse everything in the 19th century.