Before the industrial revolution, world market products were so wide-open for English manufacturing goods that English merchants no longer needed domestic market demand to sell their finished goods. Traditional markets all over the world were considered as non-capitalist markets, and most profit seeking English merchants strived to eliminate these non-capitalist markets' structures. Traditional markets in most countries could not compete with the English. The English had huge manufacturing advantages in comparison to non-capitalist countries, especially in the area of technological innovation. Most of England's superiorities were founded in textile and iron industries. This growing industrial prowess and capture of new markets quickly led to new sources of profits and increased potentials for capital accumulation. After the invention of steam engines, whole English lands were dedicated to the production of manufacturing products. Soon, factories were built closer to markets located in the cities rather than near rivers that were easily accessible to transportation or near mines for easy access to raw materials. Furthermore, upon discovering that specialization and division of labor stimulate productivity, . manufacturers increasingly encouraged mechanizations and assembly line production in their factories. As a result, manufacturing productivity also continued to increase.