Galileo Galilei

Galileo Galilei was born in Pisa on fifteenth of Frebuary in 1564.
He was the eldest son of seven children.
In 1581 he invented the pendulum and made the laws of governing their movements.
In 1583 Galileo studied Maths.
In May 1609 Galileo recived a letter from Paris corfirming a persistent rumor: the existence of a telescope that can see distant objects.With this single description, Galileo built his first telescope.