By the mid-1980s heavy metal had branched in so many different directions that fans, record companies, and fanzines created numerous subgenres. The United States was especially known for one of these subgenres, thrash metal, which was innovated by bands like Metallica, Megadeth, Slayer, and Anthrax, with Metallica being the most commercially successful. The United States was known as one of the birthplaces of death metal during the mid to late 1980s. The Florida scene was the most well-known, featuring bands like Death, Cannibal Corpse, Morbid Angel, Deicide, and many others. There are now countless death metal and deathgrind bands across the country.