Every day on the calendar, when delved into, provides a rich tapestry of events that have shaped the course of human history. The 21st of July is no exception. From wars that shifted the power dynamics of continents to innovations that changed our daily lives, this date has seen its fair share of monumental happenings. Let’s explore some of these pivotal moments.
Today in History: 21 July

1. The Battle of Manassas/Bull Run (1861)
On this day during the American Civil War, the first major battle between the Union and Confederate forces took place near Manassas Junction, Virginia. Although anticipated to be a minor skirmish by many, it turned into a full-fledged battle, leading to a Confederate victory. This clash shattered any hopes of a quick end to the war, indicating the long and bloody conflict that lay ahead.
2. Neil Armstrong’s Space Achievement (1966)
Before his famed walk on the moon, Neil Armstrong, as a NASA astronaut, flew the Gemini 8 mission with David Scott. On 21 July, they successfully docked with the Agena target vehicle, marking NASA’s first-ever manual space docking manoeuvre.
3. The Brussels Bombings (2016)
A grim reminder of the times we live in, a bomb detonated at Brussels Central Station in Belgium. Fortunately, there were no victims except for the bomber. This incident was part of a series of terror attacks that Europe faced during this period.
4. Einstein’s Theory Put to Test (1925)
On this day, the famous solar eclipse was used to test Einstein’s Theory of Relativity. Observations made during the eclipse provided further evidence supporting his groundbreaking theory, which has since become a cornerstone of modern physics.
5. The Introduction of the “Red Telephone” (1963)
The “red telephone” wasn’t literally a phone, but a direct communication link established between the United States and the Soviet Union. Initiated on this day, its purpose was to facilitate direct communication between the two superpowers, particularly in times of crisis, following the close call of the Cuban Missile Crisis the previous year.
6. The Founding of the BBC Proms (1895)
The first promenade concert (“prom”) organized by the impresario Robert Newman, along with Henry Wood as the conductor, took place. The aim was to educate and entertain the public with a rich repertoire of music. Now simply called “The Proms”, this series has since become an annual summer institution of classical music in the UK.
7. The Opening of the Detroit-Windsor Tunnel (1930)
Connecting the U.S. and Canada, this was the world’s first international underwater vehicle tunnel. An engineering marvel of its time, it signalled a new age of transportation and international connectivity.
8. A Literary Genius is Born: Ernest Hemingway (1899)
Ernest Hemingway, one of the 20th century’s most celebrated writers, was born on this day in Oak Park, Illinois. His succinct prose and adventurous life would influence countless authors and become the stuff of literary legend.
9. Scopes “Monkey” Trial (1925)
In a U.S. court, high school teacher John T. Scopes was found guilty of teaching evolution, which was against Tennessee’s law. This trial reflected the larger debate between science and religion that persists in many parts of the world.
10. The Exploration of the Deep Blue: Jacques Piccard (1960)
Swiss oceanographer Jacques Piccard, along with Lt. Don Walsh, piloted the Bathyscaphe Trieste to the bottom of the Mariana Trench, the deepest known part of the world’s oceans. Their expedition expanded our understanding of the mysteries lying in the Earth’s deepest waters.
11. The French Revolution: Robespierre’s Rise (1793)
Maximilien Robespierre, an influential figure of the French Revolution, became a member of the Committee of Public Safety on this day. This signalled his ascent to power and the impending Reign of Terror that would follow.
12. The Decline of an Empire: The East India Company (1833)
The British Parliament passed the East India Company Act, stripping the East India Company of its administrative powers and establishing British governmental control over India. This would lay the foundation for the British Raj.
13. NASA’s Viking 1 Mars Lander (1976)
On July 21, the Viking 1 Lander, an American spacecraft, successfully carried out the first-ever landing on Mars. It transmitted the first images from the Martian surface back to Earth.
14. The Chippewa Falls Logging Disaster (1878)
A significant flood in Wisconsin led to the loss of countless logs from lumber companies. It marked one of the major logging-related disasters in U.S. history.
Conclusion
July 21, like every other date on the calendar, encapsulates a mix of human triumphs, tragedies, innovations, and events that have shaped societal and global trajectories. Whether it’s the courage of astronauts exploring new frontiers, the literary genius of Hemingway, or the socio-political shifts marked by battles and revolutions, this day serves as a reminder of the diverse and interconnected events that have crafted our shared human history. Through these tales from the past, we also glean insights into our present and the potential paths our future may take.