Inventions

Mr. Lincoln's High-Tech War: How the North Used the Telegraph, Railroads, Surveillance Balloons, Ironclads, High-Powered Weapons, and More to Win the Civil War

By Thomas B. Allen & Roger MacBride Allen

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Lincoln knew that winning the war would take more than the same old strategies and maneuvers. It would require using technology to create new ways of waging war. Lincoln worked to make sure his soldiers and sailors had the best and latest hardware. By combining new tools with time-tested tactics, he helped revolutionize warfare.

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Exploring Ancient China

The First Emperor

China's first emperor was named Qin Shi Huangdi. He brought together all the warring states and made them his subjects in 221 B. C. Qin is pronounced "Chin" and ever after the country was named China. He took the name Shi Huangdi which means "first emperor." Qin was an unusual man. He standardized writing, bureaucracy, scholarship, law, currency (money), and weights and measures. He built a capital and many roads. He connected the old walls along China's northern frontier to form the Great Wall, to protect his country from invaders. But he was also cruel. He killed and banished many people who disagreed with him and destroyed books from the past.