In 1922, Warren G. Harding became the first president heard on radio, as Baltimore station WEAR broadcast his speech dedicating the Francis Scott Key memorial at Fort McHenry.
1775: The Continental Army, forerunner of the United States Army, was created.
1777: The Continental Congress, meeting in Philadelphia, adopted the original design of the Stars and Stripes, specifying a flag containing thirteen red and white stripes and thirteen stars.
1940: German troops entered Paris during World War II; the same day, the Nazis began transporting prisoners to the Auschwitz concentration camp in German-occupied Poland.
1954: President Dwight D. Eisenhower signed a measure adding the phrase “under God” to the Pledge of Allegiance.
1967: The space probe Mariner 5 was launched from Cape Kennedy on a flight that took it past Venus.
