▁of ▁the ▁Mu ara ▁U nt u ▁people , ▁they ▁would ▁trace ▁their ▁ancest ors ▁to ▁R ag hu y . ▁ ▁Culture ▁The ▁Bak ump ai ▁people ▁have ▁been ▁greatly ▁influenced ▁by ▁the ▁language , ▁culture , ▁custom ary ▁laws ▁and ▁architecture ▁of ▁the ▁Ban jar ▁people . ▁Hence ▁the ▁Bak ump ai ▁people ▁in ▁terms ▁of ▁culture ▁and ▁custom ary ▁laws ▁are ▁class ified ▁as ▁part ▁of ▁Ban jar ese ▁culture , ▁but ▁in ▁lingu istic ▁terms ▁the ▁Bak ump ai ▁are ▁closely ▁related ▁to ▁the ▁Ng aju ▁people . ▁They ▁speak ▁Bak ump ai ▁language . ▁ ▁Al most ▁all ▁Bak ump ai ▁people ▁practices ▁Islam ▁and ▁K ah aring an , ▁the ▁traditional ▁belief ▁of ▁the ▁Day ak ▁people ▁is ▁relatively ▁un seen ▁compared ▁to ▁other ▁Day ak ▁people ▁groups . ▁Custom ary ▁cer emon ies ▁that ▁are ▁related ▁to ▁old ▁belief s ▁are ▁such ▁as ▁B ade wa ▁and ▁Many ang gar ▁Leb u ▁rit uals . ▁ ▁Line age ▁Bak ump ai ▁people ▁are ▁considered ▁as ▁a ▁sub - eth nic ▁of ▁the ▁Ng aju ▁people . ▁The ▁Ng aju ▁people ▁are ▁one ▁of ▁the ▁four ▁people ▁group ▁from ▁a ▁bigger ▁famil ial ▁group ▁also ▁called ▁as ▁the ▁Day ak ▁Ng aju ▁or ▁Ot ▁Dan um ▁people . ▁This ▁people ▁group ▁is ▁also ▁known ▁as ▁Day ak ▁Ot ▁Dan um , ▁as ▁the ▁Ng aju ▁people ▁are ▁the ▁descend ants ▁of ▁the ▁Day ak ▁Ot ▁Dan um ▁people ▁that ▁came ▁from ▁the ▁up stream ▁rivers ▁that ▁are