John Lewis is a chain of high end department stores operating throughout the United Kingdom. The chain is owned by the John Lewis Partnership which was created alongside the first store in the mid 1800s. The first John Lewis store was opened in 1864 in Oxford Street London. The chains slogan is Never Knowingly Undersold which has been in use since 1925.John Lewis is a chain of high end department stores operating throughout the United Kingdom. The chain is owned by the John Lewis Partnership which was created alongside the first store in the mid 1800s. The first John Lewis store was opened in 1864 in Oxford Street London. The chains slogan is Never Knowingly Undersold which has been in use since 1925.