Before revision: This was disputed by historian Richard Pipes who wrote, in the case of the Nazi Party, that while at first limited to this group, by the end of the 1920s workers joined the party en masse and were the largest occupational group in the party by 1934.
After revision: This was disputed by historian Richard Pipes who wrote, in the case of the Nazi Party, that while at first limited to this group, by the end of the 1920s workers joined the party en masse and were the largest occupational group in the party by