Sir Isaac Newton’s Birthday

Today is Sir Isaac Newton’s birthday.

He was born in England on 4 January 1643 (1643-01-04).

Sir Isaac Newton is the person who discovered gravity.

He discovered gravity when he was sitting under an apple tree.

After that an apple felt on his head.

Then he started to think what made the apple falls on his head.

I think Sir Isaac Newton is very, very, very clever.

Sir Issac Newton