In 1980, neither China nor India had much representation in the “global middle class” — people who neither belong to the bottom half of the income distribution nor rank among the top 10% worldwide.

Mind maps show how visual structure connects ideas and establishes relationships between complex topics. Mind map examples highlight how layout, hierarchy, and color choices influence focus and ...

A strong, 6.7-magnitude earthquake struck in the North Pacific Ocean on Friday, according to the United States Geological Survey. The temblor happened at 11:44 a.m. Japan time about 71 miles northeast ...

View this study guide to learn more about the Jan. 6 hearings and to access a timeline, key terms and class activities ...