Today is Wednesday, Oct. 1, the 274th day of 2025. There are 91 days left in the year.

Today in history:

On Oct. 1, 2017, in the deadliest mass shooting in modern U.S. history, a gunman opened fire from a room at the high-rise Mandalay Bay casino hotel in Las Vegas on a crowd of 22,000 fans at a country music concert below, causing 60 deaths and more than 850 injuries.

Also on this date:

In 1890, Yosemite National Park was established by the U.S. Congress.

In 1903, the first modern baseball World Series began, with the National League’s Pittsburgh Pirates defeating the American League’s Boston Americans in Game 1; Boston would ultimately win the series 5-3.

In 1908, Henry Ford introduced his mass-produced Model T automobile to the market. Between 1908 and 1927, Ford would build m

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