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.
Map of Lost U-Boats. U-869, the submarine profiled in the NOVA program Hitler's Lost Sub, was just one of the more than 1,100 Unterseeboote, or U-boats, sunk, scuttled, captured, or otherwise lost to German forces during World War II. Here, naval historian Timothy Mulligan describes 25 of the most historically significant U-boats.