On this day
On June 21, 1898, during the Spanish-American War, the U.S. completed its capture of Guam when Marines from the USS Charleston went ashore at Piti to accept the Spanish surrender (the engagement had begun June 20). Guam became a U.S. territory, beginning the modern CHamoru-U.S. relationship.
The Supreme Court unanimously upheld the wartime curfew imposed on Japanese Americans; Gordon Hirabayashi's conviction was vacated in 1986-87 after suppressed evidence came to light. (Shares June 21 with Yasui v. United States.)
Decided the same day as Hirabayashi, the Supreme Court upheld the conviction of Portland attorney Minoru Yasui, who had deliberately violated the military curfew to test its constitutionality. (Shares June 21 with Hirabayashi v. United States.)