What does the phrase jus sanguinis refer to

Read these statements about the reconstruction amendments and decide whether they are true or false. the reconstruction amendments were intended to give more rights to newly freed enslaved people. southern democrats tended to support the 14th amendment. the 15th amendment gave all men the right to vote.read these statements about the reconstruction amendments and decide whether they are true or false. the reconstruction amendments were intended to give more rights to newly freed enslaved people. southern democrats tended to support the 14th amendment. the 15th amendment gave all men the right to vote.