Cornerstones of Freedom, Second Series, is the updated and newly designed extension of the acclaimed original series. Focusing specifically on key events in American history, from colonial times to the present day, the Cornerstones books support history, social studies, and geography curricula for middle-school students. Each book includes expanded subject coverage, subheadings, informative sidebars, glossary terms, timelines, and additional resources, as well as an attractive new design and dramatic photographs. On March 26, 1911, a fire broke out at the Triangle Shirtwaist Factory in New York City. Due to locked doors, unsafe fire escapes, and hazardous working conditions, this tragic fire caused the deaths of 146 people. Later, it also caused important changes in the law. Author Elaine Landau retells the dramatic story of the fire and discusses the resulting safety and fire prevention laws that were passed to help prevent future tragedies.