What Samuel Plimsoll gave his name to?

Samuel Plimsoll is best known for the "Plimsoll line," a reference mark on a ship's hull that indicates the maximum safe loading level. This line helps prevent overloading, ensuring the safety and stability of vessels at sea. Plimsoll advocated for maritime safety reforms in the 19th century, which ultimately led to improvements in shipping regulations. His efforts significantly contributed to reducing maritime accidents and protecting sailors' lives.