When the Nazis occupied western Poland in 1939, two-thirds of Polish Jews - Europe's largest Jewish community - fell into their hands. The Polish Jews were rounded up and placed in ghettos, where it is estimated that 500,000 people died of starvation and disease. Nazi policy at this point was aimed at forced emigration and isolation of the Jews rather than mass murder, but large numbers were to die through attrition.
Ruth Elias and her husband had conceived a child while she was a prisoner in the Theresienstadt camp, and when she arrived at Birkenau on a transport of Czech prisoners in December 1943, she was three months pregnant. Ruth passed several selections for the gas chamber even though she was obviously pregnant; she and her husband were assigned to the Czech "family camp." On July 11, 1944, after a selection made by Dr. Mengele, 3,000 prisoners in the Czech family camp, who were not considered fit to work, were sent to the gas chamber, but Ruth passed the selection even though she was in her eighth month of pregnancy. On July 14, 1944, Ruth was sent to Hamburg, Germany to work in clearing rubble from Allied bombing raids.
In early 1942 the Nazis built killing centres at Treblinka, Sobibor, and Belzec in occupied Poland. The death camps were to be the essential instrument of the “final solution.” The Einsatzgruppen had traveled to kill their victims. With the killing centres, the process was reversed. The victims were taken by train, often in cattle cars, to their killers. The extermination camps became factories producing corpses, effectively and efficiently, at minimal physical and psychological cost to German personnel. Assisted by Ukrainian and Latvian collaborators and prisoners of war, a few Germans could kill tens of thousands of prisoners each month. At Chelmno, the first of the extermination camps, the Nazis used mobile gas vans. Elsewhere they built permanent gas chambers linked to the crematoria where bodies were burned. Carbon monoxide was the gas of choice at most camps. Zyklon-B, an especially lethal killing agent, was employed primarily at Auschwitz and later at Majdanek.
In April 1944, two Jewish inmates escaped from Auschwitz and made it safely into Czechoslovakia. One of them, Rudolf Vrba, submitted a detailed report to the Papal Nuncio in Slovakia which was then forwarded to the Vatican, received there in mid-June. Thus far, Pope Pius XII had not issued a public condemnation of Nazi maltreatment and subsequent mass murder of Jews, and he chose to continue his silence.
The first transcription of Anne's diary was in German, made by Otto Frank for his friends and relatives in Switzerland, who convinced him to send it for publication. The second, a composition of Anne Frank's versions A and B as well as excerpts from her essays became the first draft submitted for publication, with an epilogue written by a family friend explaining the fate of its author. In the spring of 1946, it came to the attention of Dr. Jan Romein and his wife Annie Romein-Verschoor, two Dutch historians. They were so moved by it that Anne Romein made unsuccessful attempts to find a publisher, which led Romein to write an article for the newspaper Het Parool:
As we read the diary we see how much potential was lost not only in Anne but in her entire family. Anne Frank was an intelligent and well-read young woman who studied multiple languages and had an analytical mind. I believe we lost a shining beacon of women's intelligence when she died. She was an emerging feminist, activist, and writer! I think she would have been an amazing woman who would have gone on to do great things. All that potential was lost millions of times over during WWII, and this is what we feel deep in our hearts upon closing the book.