it is a heart-rending question of wondering...
Recently I came across a 'what-if' question, maybe file this under revisionist history? ...it's the idea that the German economy could have made it through those terrible years without Hitler -- except for the Great Depression.
Specifically, the Smoot-Hawley tariff act of 1930, which was supposed to protect beleaguered farmers/businesses but is said to have instead made the Depression worse, as well as exported the Depression to the rest of the world, as US trading partners enacted retaliatory tariffs.
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Oh and I just went back to your clip, the first one, to make certain I found the MayPole -- I did not notice it the first time, having been so taken by the swastika mounted atop the summit of the pole!