Who is the great grandfather of gymnastics?

Answer 1

Guts Muth (the Great Grandfather of Gymnastics) (1759-1839)

He wrote many influential books including carefully chosen gymnastic exercises for girls in 1818. He wrote Gymnastics for Youth, the first book on modern gymnastics in 1793. He describes the use of sloping beams, climbing poles, ladders and ropes along with the balancing beam and the swinging beam.

Answer 2

The person known as the Great Grandfather of Gymnastics is Johann Christophe Friedrich GutsMuths. He published the first systematic textbook relating to gymnastics in 1793.