Guinea, were re-domesticated in Africa possibly as early as 5,000 years ago. Besides being a direct source of food, certain animals could provide leather, wool, hides, and fertilizer. A fundamental change in working principles was brought about by Scotsman James Watt. The Industrial Revolution created a demand for metal parts used in machinery. In the Second Messenian War, Sparta established itself as a local power in Peloponnesus and the rest of Greece. Ford T was proclaimed as the most influential car of the 20th century in the international Car of the Century awards. The success American Motors' compact-sized Rambler models spurred GM and Ford to introduce their own downsized cars in 1960. This convention is only slightly relaxed in modern age and now it is still unadvisable among