By 1847 , the town was among the twenty largest towns of Hungary , with a population of 22,000 .
In 1718 , Harruckern invited Slovak settlers from Upper Hungary to the deserted area .
By 1847 , the town was among the twenty largest towns of Upper Hungary , with a population of 22,000 .
In 1718 , Harruckern invited Slovak settlers from Upper Hungary to the deserted area .