Narrative text explores scientific discoveries made from the late nineteenth century through the early twenty-first, discussing Albert Einstein, Max Planck, Marie Curie, the theory of relativity, nuclear physics, and much more. Includes sidebars, charts, maps, diagrams, and suggestions for further reading.

Examines the building of the Great Wall of China and the thousands of years of conflict that preceded it.

Although she is safe in Czechoslovakia, Elisa cannot rest, since a million other lives are still endangered and cry out for her help.

Looks at some of the most important inventions that changed the world, including lenses, the steam engine, gunpowder, and many others. Includes fold-out pages.

Highlights legendary superstar players, great dynasties, great plays, and memorable games throughout the history of pro-football.

Provides an account of the yellow fever epidemic that swept through Philadelphia in 1793, discussing the chaos that erupted when people began evacuating in droves, leaving the city without government, goods, or services, and examining efforts by physicians, the Free African Society, and others to cure and care for the sick.

Traces the history of blue jeans from the invention of riveted pants by Levi Strauss in California in the 1870s, to the appearance of the garment on the fashion runways of the twenty-first century.