When did Anthrax form?
1981
1981
1982
1984
1981
1982
1984
1981
1982
1984
1981
1982
1984
1983
1981
1980
1982
1984
1983
1981
1980
1982
1984
1983
1981
1980
1982
1984
1983
1981
1980
1979
1982
1984
1983
1981
1980
1979
1982
1984
1987
1980s
1983
1981
1980
1979
1982
1975
1984
1987
1983
1981
1980s
1980
1979
1985
1982
1975
1984
1987
1983
1981
1980
1979
1985
1982
1975
1980s
1984
1987
1983
1981
1980
1979
1985
1982
1975
1984
1987
1980s
1983
1976
1981
1980
1979
1985
1982
1975
1986
1984
1987
1978
1983
1976
1981
1980s
1980
1979
1985
1982
1975
1986
1984
1987
1978
1983
1976
1981
1980
1979
1985
1982
1975
1986
1980s
1977
1984
1987
1978
1983
1976
1981
1980
1979
1985
1982
1975
1986
1977
1984
1987
1980s
1978
1983
1976
1981
1980
1979
1988
1985
1982
1975
1986
1973
1977
1984
1987
1978
1983
1976
1981
1980s
1980
1979
1988
1985
1982
1975
1986
1973
1977
1984
1991
1987
1978
1983
1976
1981
1980
1979
1988
1974
1985
1982
1975
1986
1973
1980s
1977
1984
1991
1987
1978
1983
1976
1980
1979
1993
1988
1974
1985
1972
1975
1986
1990
1973
1977
1992
1991
1987
1980s