Working independently, American chemist Charles Martin Hall and French engineer Paul Héroult discover a method to isolate pure aluminum via the electrolysis of alumina dissolved in molten cryolite. This invention transforms aluminum from a precious metal more valuable than silver into an inexpensive, mass-producible industrial commodity. The process requires vast amounts of electricity, driving the construction of early hydroelectric dams near bauxite refining centers. Aluminum's unique properties of lightweight strength alter manufacturing, paving the way for modern aviation and electrical infrastructure.

The transformation of aluminum from a rare luxury to a ubiquitous modern metal captivates early 20th-century Avant-Garde and Futurist poets. Writers like Filippo Tommaso Marinetti celebrate aluminum in their poetry manifestos, viewing its silvery sheen, light weight, and structural utility as symbols of the speed, flight, and technological dynamism of the modern machine age, breaking away from traditional, heavy poetic imagery.