Brass make brass was not recognised as a metal. The King James Bible makes many references to "brass". The Shakespearean English form of the word 'brass' can mean any bronze alloy, or copper, rather than the strict modern definition of brass. The earliest brasses may have been natural alloys made by smelting zinc-rich copper ores. By the Roman period brass was being deliberately produced from metallic copper and zinc minerals using the cementation process, and variations on this method continued until the mid-19th century. It was eventually replaced by speltering, the direct alloying of copper and zinc metal which was introduced
Industrial metal have since patched things up and have even performed on stage together. Industrial metal suffered a critical backlash at the turn of the millennium. In an April 2000 review for the "Chicago Sun Times", Jim DeRogatis dismissed Nine Inch Nails' new music as a "generic brand of industrial thrash" and accused Ministry of repeating an act that "was old by 1992". Although "The Fragile" reached the top spot of the "Billboard" 200 and went on to earn double platinum status, DeRogatis considered it a "flop" nonetheless. Around this time, veteran industrial metal artists (Ministry, Godflesh, and White Zombie) began to