The students in Lynne Ravas’ eighth grade English class at Lower Dauphin Middle School in Hummelstown, Penn., explore topics relating to the Holocaust not through research papers, but with videos in IWitness.

The Holocaust may not seem obviously relevant for Hungarian students studying for their master’s in social work, nursing and other health-related topics. But a "Teaching with Testimony in the 21st Century" graduate is using testimony to teach just such a course

John Bergeisen recounts the task of dismantling the camp's gas chambers before Russian soldiers arrived at Auschwitz. This is the 61st testimony clip in the series 70 Days of Testimony: Leading up to the 70th Anniversary of the Liberation of Auschwitz.

Johann Stojka was born to a Roma family on March 20, 1929 in Vienna, Austria. He spent most of his childhood travelling in a trailer with his parents Maria Stojka, Karl Horvath and his five siblings, Katharina, Karl, Margareta, Amalia and Josef. His parents made a living by trading horses.

Karl Stojka was born to a Roma family on April 20, 1931 in Wampersdorf, Lower Austria. His parents Maria Stojka and Karl Horvath travelled as horse traders with their kids in a trailer. Karl had three sisters, Katharina, Margareta, Amalia, and two brothers, Johann and Josef.

Helena Silvers recounts how she escaped death in the camp's hospital. Additionally, she recalls how she became a worker in the camp, an action she believes saved her life. This is the 62nd testimony clip in the series 70 Days of Testimony: Leading up to the 70th Anniversary of the Liberation of Auschwitz.

Tova Friedman recounts how she and her mother hid in the camp's hospital during the camp's liquidation. The two were liberated a week later. This is the 63rd testimony clip in the series 70 Days of Testimony: Leading up to the 70th Anniversary of the Liberation of Auschwitz.

Miriam Ziegler describes her experiences with her family in the camp. She recounts a joyous reunion with her grandmother as well as an escape from execution with her great aunt. This is the 64th testimony clip in the series 70 Days of Testimony: Leading up to the 70th Anniversary of the Liberation of Auschwitz.