Mass production involves producing goods in large quantities at low cost per unit using assembly lines and efficient production methods. It is characterized by mechanization, organized material flows through production stages, quality standards, and specialized labor divisions. Though Eli Whitney is often credited, the concept developed earlier in Europe and the US. By the late 19th century, the American System was used to make many industrial goods like firearms and textiles. Henry Ford further refined mass production with his moving assembly line, reducing production times for items like flywheels. While lowering costs and increasing output, mass production lacks flexibility and standardizes products.