On April 12 1961 Yuri Gagarin, an USSR cosmonaut, where the first human ever to man an orbital flight, thereby making him the first human to travel into outer space.
The Sinking of The Titanic on April 14 &15, 1912.
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we landed on the moon
It is a centenary of an important event (like a birthday).
30 years war
Hanukkah is older. Hanukkah celebrates an event that took place in 165 BCE. Christmas celebrates an event that took place in 4 BCE.
Bud's mom dies at the age of 4 years old
Throw water at people since it is a Thai traditional event or new years that is celebrated every year on April 13.
the voyage in 1520 was when megallan and his three ships sailed around the world for 3 years.
The series takes place in 2058 (40 years after a mysterious memory-wiping event. But in reality, it is a simulated reality).
Elizabeth I was three years old when her mother,Anne, was beheaded for witchcraft by Henry VIII.
Nothing. Humans weren’t around 2 million years ago.