sentences:  Censuses performed in the Kingdom of Hungary during this time are considered partially inaccurate by many historians because these censuses did not record the population by ethnic origin or strictly by mother tongue, but also by the "most frequently spoken language", thus the census results overstated the number of Hungarian speakers, since this was official language at the time and many non-Hungarian native speakers stated that they most frequently speak Hungarian language in everyday communication.The Magyarization (Hungarization) policy of the Hungarian government also played a role, since numerous Bunjevci were Magyarized, that is, replaced their native South Slavic language with Hungarian.Part of the Bunjevac population was also bilingual, thus, the different results in Austro-Hungarian censuses before 1918 and Yugoslav censuses after 1918 are explained by the fact that it was a same bilingual population that in Austro-Hungarian censuses declared Hungarian language and in Yugoslav censuses declared Serbian or Croatian language.