Czech dill sauce became popular in the Czech Republic during the 20th century, particularly in the mid-20th century, as a result of cultural influences and changes in culinary preferences. The sauce's rise in popularity coincided with the availability and introduction of new ingredients and flavors in Czech cooking. It is believed that the sauce was influenced by the French culinary tradition, which often incorporates various sauces to accompany meat dishes. The use of dill in the sauce may also be attributed to the influence of neighboring countries, where dill is a common herb in their cuisines.