Robert Wadlow has born in 1918, and he is the world's tallest man ever. His height was caused by abnormally high level of human growth hormone. He showed no indication of an end to his growth even at the time of his death. At age 4 he Was 1.63m, at age 8 1.88 m ! Wadlow reached 2.72 m height and weighed 490 pounds (220 kg) at his death.