The Treaty of Versailles in the mind of the Germans stabbed them in the back, especially the guilt clause that made them take blame for the First World War. Hitler capaitalized on these sentiments and used them to rally the German people.
Secondary Sources are materials that digest, analyze, evaluate and interpret information contained within primary sources or other secondary sources. Examples. 1  Autobiographies, memoirs, diaries, emails, oral histories.  Letters, correspondences, eyewitnesses.
The Difference Between Primary and Secondary Sources of Data. Primary data is data, which is collected by the researcher themselves. This kind of data is new, original research information. Primary sources enable the researcher to get as close as possible to.