The original "Electric Factory" venue was a converted tire warehouse at 22nd and Arch Streets, which opened in 1968, and was originally called the "Electric Factory and Flea Market." A few doors down on the north side of Arch Street, between 21st and 22nd streets, was the first concert venue in that area, independent of the Electric Factory, a place called the "Trauma." The first performers, on February 2, 1968, were the Chambers Brothers. The building closed in 1973, and was eventually torn down and replaced with condominiums.