Rich in vitamin K, vitamin A and vitamin C along with other vital nutrients, the health benefits of kale include detoxification, heart support, cancer prevention and a number of others covered in this article. Health Benefits of Kale in History.
A U-boat is a type of submarine invented by the Germans for use in World War I and II. The initial U in U-boat stands for unterseeboot, or undersea boat in English. Holland housed a Submarine Development Bureau in 1922 that was made to look like a regular shipbuilding company.
Besides their success in the early years of the war, the U-Boats paid a terrible price for it. About 80% of all U-Boats were destroyed, 28.000 of the 40.000 U-boat personal were killed during the war, 8.000 were captured. Since detailed information for all U-Boat classes and single ships would be too voluminous for this web page, only a short overview about the single U-Boat types is given here.