Rome's rivalry with Carthage for control of the western Mediterranean
the Committee of Public Safety thought monopolies was such a great crime because of the fact that it took so many homes off sale in so other people couldn't buy houses that they wanted.
Villages lost many skilled members of the community.
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Exceptionally high population densities occur in the Yangtze delta, the Pearl River Delta, and on the Chengdu Plain of the western Sichuan Basin. Most of the high-density areas are coterminous with the alluvial plains on which intensive agriculture is centred.