Without any shadow of doubt by far the greatest person who has ever lived on earth, is Jesus Christ of Nazareth, God the Father's only Son. He alone created all the stars and planets and all the natural creation upon earth. This includes all land and oceans and all animals, birds and fish. His greatest creation was and is the creation of every human baby that has ever been born. He has guided mankind through His great inventions and above all shown His great love for all people. This He did by redeeming them from their fallen state and giving them the opportunity of eternal life in heaven.