In This Day In History video clip - May 1, 1931: Empire State Building dedicated - At the White House in Washington, D.C., President Herbert Hoover pushes a button that turns on the lights of New York City's Empire State Building, officially opening the tallest building erected to that date.
1 Sweet potatoes have a lot of nutrients, which are good for you body, such as vitamin B6, potassium, and iron which your body needs to help you grow strong.  Sweet potatoes are a good source of dietary fiber which helps to promote a healthy digestive tract.
Root vegetables, such as yuca and potatoes, have both types of fiber. The insoluble type comes from the skins. A 100-gram serving of yuca and the same size serving of regular potatoes contains about 2 grams of fiber. The recommended daily intake for total fiber is at least 20 grams for women and 30 grams for men.