On May 1, 1893, the World’s Columbian Exposition opened in Chicago, Illinois. For six months, it transformed the city into a global showcase of architecture, invention, culture, and ambition, drawing millions of visitors to one of the largest fairs ever held.
On April 30, 1789, George Washington was inaugurated as America’s first president. The ceremony in New York City marked the formal beginning of the new federal government created by the Constitution and placed the Revolutionary War hero at the head of a nation still finding its footing.
On April 29, 1947, the United States issued its first aerogram, then called an air letter sheet. It was a simple folded sheet of paper, but it offered Americans a cheaper and faster way to send personal messages overseas in the growing age of air travel.
On April 28, 1971, a major new federal law took effect that changed how workplace safety was enforced in the United States. That date is now observed as Workers’ Memorial Day, a time to remember those lost at work and to renew the effort to prevent future tragedies.
On April 27, 1945, a boy named Frederick August Kittel Jr. was born in a two-room apartment in Pittsburgh’s Hill District. No one in that neighborhood could have guessed he would one day have a Broadway theater named after him. He would grow up to become August Wilson, one of the most celebrated playwrights in American history.
On April 26, 1777, a 16-year-old girl climbed onto her horse and rode 40 miles through a driving rainstorm in the dark, covering twice the distance of Paul Revere’s famous ride two years earlier. Her name was Sybil Ludington — and most Americans have never heard of her.
On April 25, 1988, a team of nine Soviet and four Canadian skiers reached the North Pole — on foot, carrying everything on their backs, after 54 days on the Arctic ice. It was the largest expedition ever to reach the Pole, and the first to ski the entire distance from Siberia to Canada via the North Pole without dogs, sleds, or motorized support.
On April 24, 2005, Cardinal Joseph Ratzinger was inaugurated as Pope Benedict XVI, becoming the 265th Pope of the Catholic Church before a crowd of more than 300,000 in St. Peter’s Square. The 78-year-old German theologian — once nicknamed “God’s Rottweiler” for his doctrinal rigor — surprised the world eight years later by becoming the first pope to resign in nearly 600 years.
On April 23, 1976, the USPS issued the first regular postage stamp to include a service indicator. While most Americans would never use it or notice it, the 7.9-cent Drum coil stamp quietly solved a problem that had complicated bulk mailing for decades.