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(Friday, August 4, 1944, approximately 10:30 a.m. Central European Summer Time; during The Holocaust, part of World War II) — On her 761st day in hiding in the Achterhuis (translated as “Secret Annex” in English editions of her diary), 15-year-old diarist Anne Frank, her parents, older sister, the Van Pel family, and dentist Fritz Pfeffer were unexpectedly discovered and arrested this morning.

The Secret Annex, a sealed-off area behind her father’s business in German-occupied Amsterdam, was stormed by a group of German uniformed police (Grüne Polizei) led by SS-Oberscharführer Karl Silberbauer of the Sicherheitsdienst.

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The Franks, Van Pelses, and Pfeffer were taken to Reich Security Main Office (RSHA) headquarters, where they were interrogated and held overnight.

On August 5, 1944, they were transferred to the Huis van Bewaring (House of Detention), an overcrowded prison on the Weteringschans.

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Two of the group’s protectors, Victor Kugler and Johannes Kleiman, were also arrested and jailed at the penal camp for enemies of the regime at Amersfoort, in the province of Utrecht.

Kleiman was released after seven weeks, but Kugler was held in various Dutch concentration and prison camps until the war’s end.

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Miep Gies was questioned and threatened by the Security Police but was not detained. Bep Voskuijl managed to escape with a few documents that would have incriminated their black market contacts.

In the following days, the two female secretaries returned to the Secret Annex and found Anne’s papers strewn on the floor.

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They collected the papers, as well as several family photograph albums, and Gies resolved to return them to Anne after the war.

On August 7, 1944, Gies attempted to facilitate the release of the prisoners by confronting Silberbauer and offering him money to intervene, but he refused.

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The next day, August 8, 1944, the Secret Annex occupants were transported to the Westerbork transit camp, through which more than 100,000 Jews, mostly Dutch and German, had passed.

Having been arrested in hiding, they were considered criminals and sent to the Punishment Barracks for hard labor.