Overview Babi Yar Park in Denver, Colorado was dedicated on October 2, 1983 to memorialize the September 1941 massacre of the Jews that remained in the Ukrainian city of Kiev, at a ravine called Babi Yar. The Babi Yar Park Foundation was formed under the leadership of Helen Ginsburg. Collection contains minutes, administrative papers, correspondence, reports, scrapbooks, news clippings, photos, public relations materials and architectural drawings from the Babi Yar Park between 1969-2015.