commemorate the victims of the massacre, the whole of Šumarice was designated as a memorial park in 1953. It is now known as the October in Kragujevac Memorial Park, and covers encompassing the area that contains the mass graves. The 21st October Museum was founded within the park on 15 February 1976. Šumarice is the site of a televised annual commemoration known as the Great School Lesson () that attracts thousands of attendees every year. The park contains several monuments, including the Interrupted Flight monument to the murdered high school students and their teachers, and the monuments Pain and Defiance, One Hundred for One, and Resistance and Freedom. The site sustained damage during the NATO bombing of Yugoslavia in 1999. In 2012, the National Assembly of Serbia passed a law declaring 21 October the Day of Remembrance of the Serbian Victims of World War II. Germany's Federal Cabinet has never officially apologized for any of the mass executions committed in Serbia by the Wehrmacht during World War II, including the Kragujevac massacre. On 21 October 2021, Vice President of the Bundestag Claudia Roth became the first senior German government official to attend the annual commemoration at Šumarice. "My intention in attending was to underline that we will not let the crimes of the Nazis and the Wehrmacht be forgotten," Roth remarked, "and that, building on that remembrance, we want to foster good and friendly relations with our Serbian friends and partners." Depictions in art The Serbian poet and writer Desanka Maksimović wrote a poem about the massacre titled Krvava bajka ("A Bloody Fairy Tale"). The poem was later included in the Yugoslav secondary school curriculum and schoolchildren were required to memorise it. It ranks among the most famous Serbian-language poems. Recitations of it form the centerpiece of the annual commemoration ceremonies at Šumarice. In 1965, the Belgian poet Karel Jonckheere wrote the poem Kinderen met krekelstem ("Children with Cricket Voices"), also about the massacre. The Blue Butterfly, a book of poetry by Richard Berengarten, is based on the poet's experiences while visiting Kragujevac in 1985, when a blue butterfly landed on his hand at the entrance to the memorial museum. The massacre has been the subject of two feature films: Prozvan je i ( is Called Out; 1962) and Krvava bajka (A Bloody Fairy Tale''; 1969), named after the eponymous poem. See also List of massacres in Yugoslavia Notes Footnotes