Celluloid

Celluloid is the first commercially successful plastic, made from pyroxylin and used for various materials like baby rattles, shirt collars, and photographic film. Its light, flexible, and waterproof properties greatly impacted the manufacturing of household items despite its flammability.
 John Wesley Hyatt United States 1869 Celluloid

Celluloid is the first commercially successful plastic, made from pyroxylin and used for various materials like baby rattles, shirt collars, and photographic film. Its light, flexible, and waterproof properties greatly impacted the manufacturing of household items despite its flammability.