April 10th is Sibling Day and Encourage A Young Writer Day.
The first photo of a black hole that was taken in 2017 was announced to the public.
Apple Inc became the largest company in the world.
The UK, Ireland, and Northern Ireland governments signed the Good Friday Agreement.
Paul McCartney announced he would leave The Beatles.
The first-ever color 3D movie, 'House of Wax,' premiered in New York.
Jackie Robinson signed the first Major League Baseball contract for a Black ballplayer.
The Titanic departed Southampton for its first and only journey.
A 14-year-old girl performed the world's first human cannonball in London, England.
Arbor Day was celebrated for the first time in America in Nebraska.
Walter Hunt patented the safety pin.
Mount Tambora erupted in Dutch East Indies (now Indonesia).
The Statute of Anne became the UK's first copyright law.
The world's first Jewish ghetto was established in Venice, Italy.
Halley's Comet made its closest approach to Earth in recorded history.