The main impact was the wars impact
<span>Either to understand the population density of a specific country or to identify the exact location of a popular city in a region. Social Scientists analyse data about human behaviour, demographics and human geography to draw conclusions about how humans interact, how we are spread out across towns, cities, and countries. This data can give us clues as to how populated a country is and what areas are most popular within the regions of a city. </span>
Answer:
It was to do reconstruction and get the Union and South together
Explanation:
After the surrender, the main priority were to reconstruct and Get the union and south together, in reconstruction it tried to help get slaves rights and to rebuild.
They use a legend for that, to place the distance by inches, or landscapes, or landmarks, States countries