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.
The term U-Boot actually simply means submarine.. Generally it is thought that the submarine was invented by Cornelius Drebbel in the 1500s, or by John Holland in the 1800s. The Walther U-Boot was invented by Helmut Walther. U-boat is the English translation of unterseaboot or under sea boat, shortened to U-boat.