 Further, in the atmosphere of raising magyarization, a person could be at risk if he did not declare the Hungarian language to be his favorite for a census commissar.Between 1880 and 1910, the Hungarian population increased by 55.9%, while Slovak population increased by only 5.5% though Slovaks had a higher birth rate at the same time.The level of differences does not explain this process by emigration (higher among Slovaks) or by population moves and natural assimilation during industrialization.