Also on This Day in History Discover more of the major events, famous births, notable deaths and everything else history-making that happened on April 21st 753 B.C.

History from countries and communities across the globe, including the world’s major wars.

History happens every day! Check in with your virtual assistant or wherever you get your podcasts to find out about the historical events that happened on this day and every other day of the year.

Apr 13, 2026 · April 15 once meant lively gatherings at post offices across the country as people filed their annual tax returns.

Oct 27, 2009 · Earth Day, celebrated every April, was founded in 1970 as a day of education about environmental issues.

Apr 13, 2010 · Labor Day 2026 occurs on Monday, September 7. Labor Day pays tribute to the contributions and achievements of American workers and is traditionally observed on the first …

Mar 30, 2017 · April Fools’ Day, sometimes called All Fools’ Day, is several centuries old. Its exact origins remain a mystery.

Nov 24, 2009 · On March 19, 2003, the United States, along with coalition forces primarily from the United Kingdom, initiates war on Iraq. Just after explosions began to rock Baghdad, Iraq’s capital, …

Apr 27, 2017 · Arbor Day—which literally translates to “tree” day from the Latin origin of the word “arbor”—is a holiday that celebrates the planting, upkeep and preservation of trees.

Mar 11, 2017 · The first Pi Day celebration took place at the Exploratorium (Shaw’s place of work), a San Francisco-based interactive science museum, and featured a circular parade and the eating of …