Cernova Tragedy Day, which is observed on October 27th in Slovakia, is a day of remembrance for the tragic events that transpired in the village of Černová in 1907.

The incident, often referred to as the Černová Tragedy or Massacre, happened during the Austro-Hungarian rule. The villagers had collected funds and built a new church without any support from the state or official church authorities. During its consecration, a conflict arose due to the refusal of officials to allow local priest Andrej Hlinka, who was under investigation by Roman Catholic Church authorities for his nationalist activities, to participate. The situation escalated into violence with 15 villagers killed and dozens more injured by the Hungarian gendarmes.

The event has since been recognized as a symbol of Slovak resistance against oppression and is marked annually in modern Slovakia. On Cernova Tragedy Day, people gather at memorial sites to pay tribute to those who died. Activities typically include laying wreaths at memorials, speeches by local dignitaries, and moments of silence.

Despite it being a solemn occasion, it also serves as an opportunity for cultural expression through folk songs and traditional Slovak dances that convey themes of resilience and national pride. It's not an official public holiday but holds significant historic importance within the community.