The first wagon train arrived in California after having left Independence, Missouri, in May 1841.
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Netflix was founded by Reed Hastings and Marc Randolph in California.
The world's fastest train, a maglev bullet train with speeds of 373 mph (600 km/h), debuted in China.
The Golden Spike was driven.
Howard Hughes designed and built the world's fastest plane called the H-1 racer, then, on this day, flew it at a new world speed record at 352 miles per hour in Santa Fe, California.
101 people die in the Eschede train disaster.