According to the Nabonidus Chronicle and later tradition, Cyrus the Great's army entered Babylon with little resistance, ending the reign of Nabonidus. Cyrus presented himself as a liberator restoring proper worship rather than a conqueror, and later freed the Jewish exiles held in Babylon, permitting their return to Jerusalem—an event celebrated in the Hebrew Bible.

Launched days earlier from St. Joseph, Missouri, the Pony Express used relay riders on horseback to carry mail nearly 1,900 miles to California in about 10 days, a dramatic improvement over previous overland routes. Though it operated for only 18 months before the transcontinental telegraph made it obsolete, the service became an enduring symbol of the American West.

After four years of brutal fighting that killed roughly 750,000 Americans, Lee met Grant at the McLean house in Appomattox Court House, Virginia. Grant offered generous terms, allowing Confederate soldiers to return home with their horses and sidearms. The surrender did not officially end the war but signaled its collapse, triggering a cascade of remaining Confederate surrenders over the following weeks.

After three months of starvation, disease, and relentless siege, Major General Edward King surrendered roughly 75,000 troops to Japanese forces on the Philippines' Bataan Peninsula. It marked the largest capitulation of American forces in history. The surrender was followed by the infamous Bataan Death March, during which thousands of prisoners died from beatings, starvation, and exhaustion during the 65-mile forced march to prison camps.

American soldiers entering Buchenwald discovered piles of corpses, starving survivors, and evidence of medical experiments and mass execution. The camp had held over 250,000 prisoners since 1937, and tens of thousands died there. General Dwight Eisenhower visited days later and ordered extensive documentation, believing future generations might otherwise doubt the Holocaust's reality.

A mule-drawn farm wagon carried King's coffin through Atlanta streets lined by an estimated 150,000 mourners, symbolizing his commitment to the poor. Dignitaries including Vice President Hubert Humphrey and civil rights leaders attended, while riots continued to smolder in over 100 American cities following his April 4 assassination in Memphis.

The cosmonauts arrived at Mir to begin research work that would later include an unplanned spacewalk to repair thermal insulation damaged during launch, a hazardous fix performed in the vacuum of space. Their mission underscored the technical improvisation often required to keep the aging Soviet space station operational during its later years.