When the United States became the first country to use an atomic weapon when it dropped the atomic bombs on Japan in 1945. Not long after, other countries began developing atomic bombs. Today, nuclear power is used as an energy source, but the threat of nuclear warfare lingers. How the Bomb Changed Everything explores the complicated legacy of the first atomic bombs. Easy-to-read text, vivid images, and helpful back matter give readers a clear look at this subject. Features include a table of contents, infographics, a glossary, additional resources, and an index. Aligned to Common Core Standards and correlated to state standards. Core Library is an imprint of Abdo Publishing, a division of ABDO.