Before Galileo Galilei was born Savonarola burned a lot of cool paintings and books and the renaissance was ending. When Galileo was a kid his dad introduced him to math and science. When he was 6 years old his mother took him up on a hill to see a comet. When he was 9 years old he saw a lunar eclipse which is where the earth blocks the moon from the sun. it is also known as a blood moon. When he grew up he wanted to be a priest but his dad convinced him to be a doctor. While he was at school however he stumbled into a geometry class and convinced his dad to let him be a mathematician. Later in his life he made a telescope and discovered the moons of Jupiter.