Did elonomic development and Westrard expansion affect all parts of the nation the same

Which is the best example of a primary source ducument useful in the study of history ?

Why is it useful for historians to base certain studies on the analysis of historical themes

During the invasion of the soviet union, the einsatzgruppen did which of the following? killed large numbers of jews, as well as many locals. led military troops. eliminated local administration in lithuania. took over many administrative functions in the war effort. planned and organized extermination camps.