While we make use of many varieties of data, our primary sources come
from county tabulations drawn from the U.S. censuses of population
and agriculture. We have collected those data for the decennial
population censuses from 1880 through 2000, as well as for the
agricultural censuses (which were decennial until 1920 and then more
frequent thereafter) from 1880 through 1997.3 In addition to
census-based sources, we have collected other county-level
tabulations of social characteristics. We use the population and
social indicators data to understand population structure and
change, and the agricultural census data to understand agricultural
land use. Their consistency, as well as the effectiveness and
long-term quality of the U.S. census, have made this part of our
project straightforward. Some of these data were available to us in
digital form, and others we collected in print form and then
hand-keyed into our database. All of these data are described in
Gutmann et al.
(1998). Since that document was published, we have added
data from recent censuses (1997 agriculture and 2000 population),
while maintaining their content and structure. Although our study
area is not coterminous with the 10 states, we have collected data
that covered the entire area of the 10 Great Plains states, and
often neighboring states, especially Iowa and Minnesota.
Answer:
Correct answer is C. Dividing China's history based on which dynasty ruled the country.
Explanation:
Option C is the only correct answer as we create periodization to divide history into quantified time blocks of time, with a goal to easily research what has happened in the past. Therefore dividing history of China according to the periods of reign of certain countries is one way of periodization.
Option A is not correct as this refers to the ways how someone measured time, not how he created periodization of certain periods and events.
Option B is not correct as this is description of historical events, not periodization of those events.
Last option is also not correct as it shows different accounts of certain historical events, not their periodization.
Answer:
It enabled them to wage a modern war
Explanation:
The Northern states supplied the military with all the means necessary to wage a modern war, producing large quantities of ammunition and other supplies, and in doing so financing the war with its industrial capacity. The Midwest supplied the Union with soldiers, food, horses as well as financially. Military hospitals were located throughout the territory of the Union.
The national banking system was reformed during this period, and prosperity was stimulated by heavy spending by the federal government. Union countries have invested a great deal of money and effort in psychological and social support for soldiers, their wives, widows and orphans.
Thousands of Allied troops were marched to their death as they walked to their prison camp. They were treated miserably, often hit and told to march all day.
Very few of the many Allied troops that marched survived
hope this helps