March 29

March 29 is the 89th day of the year, and the American record for it runs from 1847 to 1975 — a span of 128 years. The entry that anchors it: American Civil War, 1865.

By the middle of the nineteenth century the date carries heavier freight. In 1847, Mexican–American War — United States forces led by General Winfield Scott take Veracruz after a siege. Then, in 1865, American Civil War — the Appomattox campaign opened with the Battle of Lewis's Farm, in which the Confederate Army of Northern Virginia was forced into a series of retreats that would culminate in their surrender.

In the postwar nineteenth century the date tracks a nation rebuilding. In 1882, the Knights of Columbus, the world's largest Catholic fraternal service organization, was founded by Michael J. McGivney in New Haven, Connecticut, U.S.

The postwar entries show a nation both expanding and contesting itself. In 1957, the New York, Ontario and Western Railway makes its final run, the first major U.S. railroad to be abandoned in its entirety. Four years on, in 1961, the Twenty-third Amendment to the United States Constitution is ratified, allowing residents of Washington, D.C., to vote in presidential elections. Then, in 1973, Vietnam War — the last United States combat soldiers leave South Vietnam. A year later, in 1974, NASA's Mariner 10 became the first space probe to make a flyby of Mercury. A year later, in 1975, Jeff Beck released Blow by Blow, his most successful album in the U.S., reaching the top five and selling over one million copies.

The date is also a birthday. Among the Americans born on March 29: John Tyler (1790), American lawyer and politician, 10th President of the United States; Elihu Thomson (1853), English-American engineer and inventor; Adolfo Müller-Ury (1862), Swiss-American painter; Cy Young (1867), American baseball player and manager; and Lou Henry Hoover (1874), American philanthropist and geologist, 33rd First Lady of the United States.

March 29 is also a date of endings. Among the Americans who died on it: John Jacob Astor (1848), German-American businessman; Gustavus Franklin Swift (1903), American business executive; William Wallace Denslow (1915), American illustrator and caricaturist; and John Burroughs (1921), American naturalist and nature essayist.

The date carries formal observance as well — National Vietnam War Veterans Day (United States). 8 entries, 128 years, one square on the calendar. March 29 is a reminder that history is experienced as an ordinary day before it is remembered as a date.