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.
Insoluble fiber is found on the exterior and husk of plant foods like grains. Grains are one of the major sources of fiber in the American diet. Whole-wheat bread, wheat bran and corn bran are among the best known sources of insoluble fiber.Whole-grain breakfast cereals are an excellent source of insoluble fiber as they often contain wheat bran, among other grains.Brown rice, barley, couscous and bulgar are less well-known grains that provide insoluble fiber.nother source of insoluble fiber is plant proteins. Legumes are rich sources of fiber, but only contribute about six percent of fiber in the American diet due to its low consumption. The legume family includes beans, peas and lentils. Seeds such as sunflower seeds and pumpkin seeds contribute insoluble fiber.