Learn geography
People, places, and patterns— culture, economies, and histories. This hub links to population and urbanization, culture and traditions, history, economy and resources, and architecture and landmarks.
A population-density map compares residents with land area, not just the number of people in each state. Consistent inputs make the state ranking meaningful.The result using a consistent…
Population density maps are useful only when the year, denominator and coverage are clear. This resource makes those details visible alongside the colors.The result using a consistent methodThis…
Read a Lorenz curve by matching a cumulative share of people, ranked from lowest to highest income, to their cumulative share of total income. The equality line gives…
Immigration is movement into a country to live there; emigration is movement out of a country to live elsewhere. A person moving from Country A to Country B…
Urbanization is an increase in the share of a population living in urban areas; urban growth is an increase in the number of urban residents. They often occur…
To read a population pyramid, find an age group on the vertical axis, then read each bar outward from the center against the horizontal scale. Check whether the…
An enclave is a territory completely surrounded by one other territory. An exclave is a part of a state separated from that state’s main territory by foreign territory.…
Arithmetic density divides total population by the chosen area; physiological density divides total population by arable land; agricultural density divides farmers, or a defined agricultural population, by arable…
A capital can sit near one edge of a country while millions of residents live closer to a capital across a border—or across the sea. Turning that observation…
A baby’s birthplace can determine citizenship before the parents leave the hospital—but only in a minority of countries. The important distinction is between countries that grant citizenship automatically…
