I would say that one of the greatest traits that the German possess, which still stands out, is their meticulous attention to detail. When this is matched with their commitment to hard work, there is excellence and progress. In light of this, the years between 1750-1914 were tremendous for Germany and they impacted the world, not just the region. Let me list a few points.
First, their attention to detail and systematic mind created the diesel engine in 1885 by Rudolph Diesel, which we still use today. This was one of the great inventions of history. I would also say that this engineering prowess still exists today among the Germans.
Second, amazingly the Germans also had a knack for creativity as well. If you think about it, some of the greatest composer of all time were all German. Bach, Beethoven, Brahms, and we are only at the "b's"
Third, Germans also had a gift for medicine (which can be seen in connection to their meticulous mind). They created the X-ray. Willhelm C. Rontgen was the creator of it and he even won the Nobel Peace Prize for it.