What four things were blacks not allowed to do according to the codes?
marry by law
carry weapons
vote
go to school
testify as witnesses during a trial
swear out affidavits in criminal cases
meet in groups with other blacks
hold public office
the black codes prevented black from marring outside thier own race,owning land,voting,or serving on a jury. these codes were passed into the law after the civil war by the southern states. so the awnser will be a,c,e,g.