Learn about five of history's most critical contagions and the havoc those diseases wreaked across the globe.

Since its introduction in the 1970s, hip-hop has become a way of life. This title takes an inside look at the men of hip-hop. The Men of Hip-Hop Groups follows the careers of hip-hop's top male acts, examining their contributions to the genre as it burst into the mainstream and went global. Features include a timeline, a glossary, essential facts, references, websites, source notes, and an index. Aligned to Common Core Standards and correlated to...

Since its introduction in the 1970s, hip-hop has become a way of life. This title takes an inside look at hip-hop culture. Hip-Hop Cultureexamines the roots of the four pillars of hip-hop--deejaying, emceeing, dance, and graffiti--and explores how they created a culture that burst into the mainstream and went global. Features include a timeline, a glossary, essential facts, references, websites, source notes, and an index. Aligned to Common Core Standards...

Retraces the paths taken by humanity's prehistoric ancestors to explain the role of migration in human history, describing how scientists are forging new understandings about ancestry and civilization, and explores the future of human migration.

Facing lifelong separation, William and Ellen Craft fled north in disguise, risking detection at every turn, all for the sake of freedom from slavery... Douglas Mawson battled a power greater than any human villain when Mother Nature trapped him in her icy Antarctic jaws... In 1943, Nazi guards packed hundreds of Belgian Jews into train cars headed for Auschwitz. Simon Gronowski, 11 years old, was determined to escape... Three inmates vanished from...

Imagine leaving everything you've ever known-your friends, family, and home-to travel along roads you've never seen before, getting help from people you've never met before, with the constant threat of capture hovering over your every move. Would you risk your life on the Underground Railroad to gain freedom from slavery?In The Underground Railroad: Navigate the Journey from Slavery to Freedom, readers ages 9 to 12 examine how slavery developed in...