A multidisciplinary database for elementary and middle school learners, researchers, and educators covering curriculum areas such as current events, history, health, language arts, math, science, social studies, and technology. All newspaper, magazine and reference content is 100% full text, editorially-selected and indexed from over 2,200 reliable, high-quality domestic and international sources. The collection includes 9,000 integrated educational weblinks, and reference materials such as the Compton’s by Britannica encyclopedia and DK Eyewitness books.
"A wondrous engineering feat rarely matched in the history of the world, the 1,500-mile-long Great Wall stretches the whole length of China's northern borders from the shores of the Pacific to the Gobi Desert in central Asia. It is so prominent on earth that astronauts say it is the only manmade structure they can see with the naked eye from space.