Vikings raided and traded all over the world! Discover the origin of Vikings, their historical development, famous Vikings, key skills and traits, and details about weapons, training, and raids. Fast facts, maps, infographics, a glossary, timeline, index, and historical and color photos supplement easy-to-read text. Aligned to Common Core Standards and correlated to state standards. Checkerboard Library is an imprint of Abdo Publishing, a division of ABDO.