Scientists suspected back then that an unknown metal existed in alum as early as 1787, but didn't have a way to extract it until 1825. A danish chemist, Hans Christian Oersted was the first to produce tiny amounts of aluminum. Then in 1989, Charles Martin Hall came up with an inexpensive method for the production of aluminium which then brough the metal into wide commercial use. Tin was first replaced by aluminium in 1910 when the first aluminium foil rolling plant, "Dr. Lauber Neher & Cie and Emmishofen" was opened in Switzerland while the plant started out in 1886 in Schaffhausen, at the foot of the Rhine Falls - capturing the falls' energy to produce aluminium. Aluminium Foil recplaced Tin Foil immediately after World War II becuase aluminium is easier to work, more plentiful in the Earth's crust (making it cheaper to produce and buy) and possesses qualities that are deemed as more useful.
Hans Christian Oersted, the first to produce tiny amounts of aluminium.