Before revision: For example, although Iowa was admitted as a state of the United States in 1846, maps that depicted ownership of land indicated below-average densities of population in the northwestern region of Iowa as late as the 1870s, this being a corner of the State that is still famous for its high water table and numerous lakes and wetlands.
After revision: For example, although Iowa was admitted as a state of the United States in 1846, maps that depicted ownership of land indicated below-average densities of population in the northwestern region of Iowa as late as the 1870s, this being a corner of the state still known for its high water table and numerous lakes and wetlands.