On June 15, 1864, Ulysses S. Grant launched the Siege of Petersburg. The long struggle that followed stretched Union and Confederate forces across miles of trenches and helped decide the final months of the Civil War.
On June 14, 1846, California settlers staged the Bear Flag Revolt in rebellion against the Mexican government. Their handmade flag, painted with a grizzly bear and a single star, gave the short-lived California Republic its symbol and later inspired the state flag still used today.
On June 13, 1974, the US issued its first stamps designed in a diamond format, honoring America’s Mineral Heritage. The four bright 10¢ stamps turned ordinary minerals into miniature works of art and gave rock collectors a long-awaited place in US postal history.
On June 12, 1963, civil rights activist Medgar Evers was killed while standing in his own driveway. As Mississippi’s first NAACP field secretary, Evers led voter registration drives, investigated racial violence, pushed to desegregate schools and public spaces, and became one of the state’s most visible voices for justice.
On June 11, 1944, the USS Missouri was commissioned into the US Navy, giving America one of the most powerful battleships ever built. Within 15 months, the ship known as “Mighty Mo” would help fight the last major battles of World War II and host the ceremony that formally ended the war.
On June 12, 1963, civil rights activist Medgar Evers was killed while standing in his own driveway. As Mississippi’s first NAACP field secretary, Evers led voter registration drives, investigated racial violence, pushed to desegregate schools and public spaces, and became one of the state’s most visible voices for justice.
On June 1, 1792, Kentucky became America’s 15th state and the first state west of the Appalachian Mountains. Its admission marked a new stage in the nation’s growth, as settlers pushed through mountain passes into a region long valued for its rivers, forests, wildlife, and rich farmland.
On May 31, 1864, forces assembled in Virginia for the bloody Battle of Cold Harbor. The clash became one of the final major battles of Grant’s Overland Campaign against Robert E. Lee.
On May 29, 1790, Rhode Island became the last of the original 13 colonies to ratify the US Constitution. The vote was close, but it brought the smallest state into the new nation as the 13th state.
On June 15, 1864, Arlington National Cemetery was officially established. It has since become the final resting place for over 420,000 military servicemen and women.
On June 15, 1836, Arkansas was admitted as the 25th state of the Union. Statehood was hotly debated for 25 hours before being approved and signed into law by President Andrew Jackson.
On June 15, 1934, Franklin Roosevelt signed legislation establishing Great Smoky Mountains National Park. Home to some of the highest mountains in North America, the park is one of the most visited in the United States.
On June 15, 1942, the Post Office Department inaugurated its V-Mail service. During World War II, letters bound for service personnel were photographed and transferred to microfilm. This special process enabled letters to take up a fraction of their usual space on planes going to war zones, allowing more room for crucial supplies.
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