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.
1 The Monsun boats-The story of the U-boat's penetration on the Indian Ocean and the Far East. 2  U-47 goes to Scapa Flow-The sinking of HMS Royal Oak, possibly the most daring U-boat attack in the war. 3  The U-boat War in the Mediterranean-A overview and technical information on this theatre of war (Not complete).