On Saturday, June 20th, 1942 Anne Frank wrote in her diary: “Writing in a diary is a really strange experience for someone like me. Not only because I've never written anything before, but also because it seems to me that later on neither I nor anyone else will be interested in the musings of a thirteen-year-old schoolgirl. Oh well, it doesn't matter. I feel like writing, and I have an even greater need to get all kinds of things off my chest.” Nowadays we know, that fears of the 13- year old girl at that time did not become true. Her diary had been published in many countries around the world and became one of the most popular Holocaust testimonies. There are very many life-stories of the Jewish children who were sentenced to death by the Nazis. These children could not grow up. Amoung those children was a Jewish boy from Poland, who was writing down in school- notating his thoughts and observations during the time of the Nazi- occupation in Poland. His name was Dawid Rubinowicz. He is the author of one of the most touching testimonies of the fate of the Jewish children on the Holocaust.