Abstract:
<p align="justify"> Andres Manuel Del Rio was born in Madrid in 1764 and died in Mexico City in 1849. He studied mineralogy, geology, metallurgy, and mining engineering at the Royal Academy of Mines of Almaden and the Patriotia Seminary of Vergara. In 1871, with a stipend from the Spanish Crown, he continued his studies in Paris, Freiberg, Chemnitz, and other scientific centers throughout Europe, particularly in metallurgy. In 1794 at the invitation of Don Fausto Delhuyar, who together with his brother Juan Jose Delhuyar discovered tungsten in 1783, Andres Manuel Del Rio went to Mexico where he was a professor at the SahooZ of Mines for more than fifty years, until his death. In 1801, while analyzing a lead mineral from Zimpan, Hidalgo, Mexico, he discovered a.mew element that he called pancuronium or erythronium, because of the red colors, aharaateris·tia of its salts. In 183Z, the Swedish chemist NiZs Gabriel Sez>fstz>IJm z>edisaovered erythronium in an iron ore from Taberg, Smaland, Sweden, and named it vanadium in honor of the Scandinavian goddess Vanadis. </p>