Citizenship at birth for children born in foreign countries whose parent(s) are U.S. citizen(s).

The ratio of economically dependent people (defined as under age 15 or over age 64) to economically productive people (ages 15-64) in a given population. Also known as the dependency ratio.

Any person who is not a United States citizen

A pardon, or legal forgiveness, granted for an offense such as entering a country illegally.

A child born in the United States to illegal immigrants or other non-citizens. The term "anchor" refers to the fact that the child’s U.S. citizenship may provide a means for the rest of the [..]

One of the six legal immigrant categories, an asylee is an alien either in the United States or applying to enter at a U.S. port of entry who is unable or unwilling to return to his or her country of [..]

The protection that countries grant to refugees.

People who file an application for asylum in a country other than their country of nationality. They remain asylum-seekers until their application is considered and decided, at which point they either [..]

A dramatic post-World War II increase in fertility and birth rates in the United States, Canada, Australia, and New Zealand. Between 1946 and 1964, 76 million American babies were born.

The number of live births per 1,000 people in the population within a given year. Not to be confused with the growth rate.