Pennyweight Troy weights were defined in such a way that the old Tower pound came out to exactly 5400 Troy grains (also known as barleycorns), the Tower pennyweight Troy grains (and thus approximately 1.46 grams). After 1527, the English pennyweight was the Troy pennyweight. of 24 Troy grains. Thus the Troy pound, ounce, and pennyweight, with their definitions given in terms of the Troy grain instead of in terms of the Tower grain, were 1/15 or 6.667% more than the Tower equivalents. The Troy pound and the pennyweight lost their official status in the United Kingdom in the Weights and Measures
Five Grains categories of grains. The name is typically translated as the "Five Grains" or the "Five Portions of cereal", and less often as the "Five Sacred Grains" or "Crops". Some context is important to understanding the concept, however. First, this use of "five" predates modern botanical notions and is better understood as part of the symbolic use of numbers in Chinese culture. From a very early date, Han culture understood the world as composed of five elements and many corresponding pentads were enumerated, including the Five Directions (south, north, west, east, "and" center), the Five Colors (red, black, white, "qing", and