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.
, a shortening of Unterseeboot, literally undersea boat. While the German term refers to any submarine, the English one (in common with several other languages) refers specifically to military submarines operated by Germany, particularly in the First and Second World Wars.n the early stages of the war, the U-boats were extremely effective in destroying Allied shipping, initially in the mid-Atlantic up until 1942 when the tides changed, where there was a large gap in air cover.