This Day in History
March 20, 1774 — Boston Port Act Passed
American History American Revolution
On March 20, 1774, Britain passed the Boston Port Act, closing Boston Harbor after the Tea Party. The harsh punishment devastated the local economy but united the colonies in resistance. Instead of restoring order, the act fueled outrage, strengthened cooperation, and pushed America closer to revolution and independence.
March 20, 1800 — Volta Invents the First Battery
Chemistry Inventors Science Scientific Discovery
On March 20, 1800, Alessandro Volta introduced the first electric battery, the voltaic pile, providing a steady source of electrical current. This breakthrough transformed electricity from a scientific curiosity into a practical tool, laying the foundation for modern technology, electrochemistry, and countless innovations that continue to power the world today.
March 19, 1918 — Standard Time Act Signed
On March 19, 1918, President Woodrow Wilson signed the Standard Time Act, establishing Daylight Saving Time and formalizing U.S. time zones under federal control. The law brought consistency to timekeeping, improved coordination across industries, and reflected the nation’s shift toward efficiency during World War I and an increasingly modern era.
March 18, 1877 — Frederick Douglass Appointed U.S. Marshal
Abolitionist American History Civil War Political Leaders
On March 18, 1877, Frederick Douglass was appointed U.S. Marshal of Washington, D.C., marking a major milestone for Black leadership in government. His rise from enslavement to federal office symbolized progress during Reconstruction, even as the nation began retreating from civil rights protections for African Americans.
March 17, 180 — Death of Marcus Aurelius
On March 17, 180, Marcus Aurelius died, ending Rome’s era of wise leadership. His son Commodus succeeded him at just 18, marking a shift toward instability. Aurelius’s legacy as a philosopher-king endured, but his death signaled the beginning of Rome’s gradual decline from its golden age of strong emperors.