Parish records at Holy Trinity Church in Stratford-upon-Avon show William Shakespeare's baptism on this date, though his actual birth date remains unknown, traditionally celebrated three days earlier on April 23. The entry is the first solid evidence of the future playwright's existence, born to glove-maker John Shakespeare and Mary Arden.

After a grueling four-month Atlantic crossing, roughly 104 English colonists aboard the Susan Constant, Godspeed, and Discovery sighted land near the Chesapeake Bay. Days later they would sail up the James River and establish Jamestown, launching England's first lasting colonial foothold in North America.

Engineers conducting long-range wireless transmission tests in the early 1920s pushed the boundaries of radio's reach, part of a wave of experimentation that would soon deliver regular commercial broadcasting and transatlantic communication.

On April 26, 1937, the Luftwaffe's Condor Legion and Italian aircraft firebombed Guernica, a Basque market town with no significant military value, in a coordinated attack lasting over three hours. The raid, one of the first aerial bombings of a civilian population, killed an estimated 200 to 1,600 people and inspired Picasso's famous painting.

Following Italy's invasion of Albania in early April 1939, Mussolini's government moved to consolidate control, folding Albanian political and military structures under Italian oversight. The occupation turned Albania into a staging ground for later fascist ambitions in the Balkans and Greece.

Following independence movements in both territories, Tanganyika's President Julius Nyerere and Zanzibar's President Abeid Karume signed an agreement merging their nations into the United Republic of Tanzania. The union created one of Africa's most stable post-colonial states, blending mainland governance with Zanzibar's distinct Swahili and Arab-influenced culture.

During a late-night safety test, operators at the Chernobyl plant in Soviet Ukraine lost control of Reactor No. 4, triggering a steam explosion and fire that blew off the reactor's roof. The disaster killed dozens outright, forced the evacuation of over 100,000 people, and spread radioactive contamination across much of Europe, becoming the worst nuclear accident in history.

Beginning April 26, 1994, millions of South Africans stood in lines stretching for miles to cast ballots in the country's first fully democratic election. The vote, held over several days, delivered a decisive victory to Nelson Mandela and the African National Congress, formally ending decades of apartheid rule.