:Portal:United States/Anniversaries/June/June 21

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• 1898 – The United States captures Guam from Spain.
• 1942 – A Japanese submarine surfaces near the Columbia River in Oregon, firing 17 shells at nearby Fort Stevens in one of only a handful of attacks by the Japanese against the United States mainland during World War II.
• 1948 – Columbia Records introduces the long-playing record album (LP) in a public demonstration at the Waldorf-Astoria Hotel in New York City.
• 1964 – Three civil rights workers, Andrew Goodman, James Chaney and Mickey Schwerner, are murdered in Neshoba County, Mississippi, United States, by members of the Ku Klux Klan.
• 1973 – In handing down the decision in Miller v. California, the Supreme Court establishes the Miller Test for obscenity in U.S. law.
• 2004 – SpaceShipOne (pictured) becomes the first privately funded spaceplane to achieve spaceflight.

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