Hannibal
Hannibal son of Hamilcar Barca invaded Italy and occupied it from 218 to 202 BC during the Second Punic War.
the period from January 1st 300 BC, 00:00 to December 31st 201 BC, 23:59
It is grammatically correct to spell out the word for numbers of ten and less, hence, "second century B.C." is correct.
its the 4th century!