(1999) The 20th century has witnessed the transformation of the United States from a predominately white population rooted in Western culture to a society with a rich array of racial and ethnic minorities.
(2004)World population was transformed in the 20th century as technological and social changes brought steep declines in birth rates and death rates around the world. The century began with 1.6 billion people and ended with 6.1 billion, mainly because of unprecedented growth after 1960.
(2020) PRB’s World Population Data Sheet is an excellent reference and data analysis tool. This series of short activities allows students to access a wealth of data on the world, regions, and individual countries, and develop their data literacy skills and knowledge of geography.
By acknowledging the direct link between individuals and public policies, PRB reinforces the relevance of data, showing that every citizen has a stake in decisions grounded in facts.
2011) In Yemen, one in three women ages 20 to 24 report that they were married before their 18th birthday. And although there seems to be a positive trend over generations, Yemen still has the highest rate of early marriage in western Asia and is considered one of the top 20 "hot spots" for child marriage.