The Ringel house number in Rzeszów was not new information
A 1856 birth record lists the Ringel family at house number 299.
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Rzeszów market square then and now
Views of the rynek through the years.
Wikipedia is key for validating historical accounts
Following up on the details of an ancestor's Holocaust testimony, we hone our fact-checking methodology and make several breakthrough discoveries about the Ringel family branch.—Machinist
Ringel house number 299 was in the heart of Rzeszów's Jewish quarter
A house number listed in several family birth records is located on three historical maps—smack dab in the Jewish district
Hermann may have been wounded in battle on the WWI Eastern Front
One line in a daily casualty report helps to pinpoint the context of a grandfather's military service. Hermann Ringel's infantry division was part of the German Eleventh Army in the 1915 Galicia campaign
Wikipedia is key for validating historical accounts
Besides the fallibility of memory, there are many reasons that an eyewitness account might not be precisely accurate. Use Wikipedia to vet historical testimony.
Theodor Herzl School memory project
A 2006 reunion of former students of the Theodor Herzl School in Berlin produced a trove of content about the influential Zionist institution