Math::BigInt::Scalar - goto metacpan;

Math::BigInt::Scalar was first released with perl v5.8.1 (2003-09-25) and removed from v5.9.1 (2004-03-16)
Perl version Module version
v5.9.0 (2003-10-27) 0.11
v5.8.2 (2003-11-05) 0.11
v5.8.1 (2003-09-25) 0.11