400
Using the maps provided, identify the major change reflected in the maps. Then, identify one major factor that accounts for this change over time.
Changes
-more industrialized in 1850
-industrial centers also developing near the Great Lakes and in the South
-more manufacturing in the W and S in 1850 than 1820
-in 1850, there were fewer areas that did not report manufacturing statistics
REASON(S)
-after 1820, the textile industry grew significantly as water power was harnessed and a surplus labor force was available
-women from rural NE moved into town/cities to take jobs in textile mills
-increased immigration, especially from Ireland, increased the labor pool
-discovery of coal and iron led to increased manufacturing in the Ohio Valley and near the Great Lakes