Development of Utekáč began in 1787 when earl Forgáč came to the territory. He built up a few glassworks from which just the biggest – Clara – is preserved. Aboriginal inhabitants of the glasswork's colony moved in families of glassworks experts from Germany, Hungary, Bohemia and Moravia.
In 1787, Earl Forgáč arrived in the territory and began developing a glassworks industry. He built several workshops, with only the largest one, Clara, surviving to this day. The indigenous people of the colony brought families of skilled glassmakers from Germany, Hungary, Bohemia, and Moravia.