Adam Rainer is the only man in history to have been recorded as a dwarf and a giant during his lifetime.
Adam Rainer was born in Graz, Austria to average-sized parents in 1899. When WW1 broke out, Rainer tried to enlist in the army, but at 1.41 m tall, he was deemed too short and weak. A year later, Rainer tried again, and although he had grown a full 6 cm, the army rejected him once more based on his height. Standing 1.47 m tall at the age of 19, Rainer was considered a dwarf, being nearly 6 cm below the cut-off (1.53 m). Although he was short, medical reports from the period state that Rainer had abnormally large hands and feet for his height.
At the age of 21, all this changed. Rainer (pictured right) suddenly began growing at an alarming pace. Over the next decade, he grew from just under 1.53 m to a shocking 2.16 m. During this period, Rainer also began developing a severe spinal curvature. In Rainer's case, this was caused by a tumor on his pituitary gland which led to an overproduction of growth hormones in his body. This was the reason behind his strange appearance, for Rainer didn't just have abnormally large hands and feet. He also had a protruding forehead and jaw, as well as thick lips set over widely-spaced teeth.
He died, aged 51, measuring 2.37 m – though some newspapers reported his height as 2.43 m. He is the only man in history to be classified as both a dwarf as well a giant; and for me, he is a testament to the marvels of the human body.