Patten (shoe) wooden inner sections with leather above and below. In earlier varieties of pattens, dating from the 12th century on, the stilt or wedge variety were more common. From the late 14th century, the flat variety became increasingly common. Leather pattens became fashionable in the 14th and 15th centuries, and in London appear to have begun to be worn as shoes over hose in the 15th century, spreading to a much wider section of the public. Most London patten soles were constructed of alder, willow or poplar woods. In 1390, the Diocese of York forbade clergy from wearing pattens and clogs
Intensive pig farming Pigs have a limited tolerance to high temperatures and heat stress can lead to death. Maintaining a more specific temperature within the pig-tolerance range also maximizes growth and growth-to-feed ratio. Indoor piggeries have allowed pig farming to be undertaken in countries or areas with unsuitable climate or soil for outdoor pig raising. In an intensive operation, pigs will no longer need access to a wallow (mud), which is their natural cooling mechanism. Intensive piggeries control temperature through ventilation or drip water systems. Pigs are naturally omnivorous and are generally fed a combination of grains and protein sources (soybeans, or meat