Portal:United States/Anniversaries/October/October 1
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|caption=Yosemite Valley
|text=* 1890 – Yosemite National Park is established by the U.S. Congress. (pictured)
- 1903 – The first modern World Series in North American baseball, pitting the National League's Pittsburgh Pirates against Boston of the American League, begins at Pittsburgh's Exposition Park.
- 1931 – The George Washington Bridge linking New Jersey and New York opens.
- 1940 – The Pennsylvania Turnpike, often considered the first superhighway in the United States, opens to traffic.
- 1958 – NASA is created to replace NACA.
- 2017 – Stephen Paddock fired more than 1,000 rounds of ammunition from his hotel suite on a crowd attending the Route 91 Harvest music festival on the Las Vegas Strip, resulting in 60 deaths and 867 injuries.
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