1
In 2015, an earthquake hit Nepal and killed over 8,000 people.
2
John Lennon was killed by a fan on December 8, 1980.
3
Two men invaded and killed the journalists of the Charlie Hebdo newspaper in Paris in 2015.
4
In 2003, scientists completed the Human Genome Project.
5
Fidel Castro established a communist government in Cuba in 1959.
6
In 2015, scientists confirmed the existence of water on Mars.
7
Barack Obama became the first African American US president in 2009.
8
Since the early 1980s, HIV has infected more than 70 million people.
