Simplify the following text for a Grade 5 native English-speaking person.
Original: Coming to prominence towards the end of the New Wave of British Heavy Metal , Venom 's first two albumsâ '' Welcome to Hell ( 1981 ) and Black Metal ( 1982 ) â '' are considered a major influence on thrash metal and extreme metal in general . Venom 's second album proved influential enough that its title was used as the name of an extreme metal subgenre : black metal .
Simplified: Venom is considered to be ( one of ) the first Black Metal bands .