Gao Li, a Chinese character, was a calligrapher of the imperial clan in the Tang Dynasty. Colliers designed the first schoolbag according to the shapes of wheels and saddles, and designed a scooter with a wooden box with wheels. Thickened materials are connected and fixed on the carriage board with ropes to form a foldable rattan book bag for holding books, which is foldable and convenient to carry.
This design was very advanced at that time, which had a far-reaching influence on the later schoolbag design.