Hoose's (It's Our World, Too!) impressive survey places young people at the center of every event that shaped America, from 12-year-old Diego Bermúdez who sailed with Christopher Columbus in 1492 to high school junior Claudette Colvin's refusal to give up her seat in 1955 Montgomery, Ala., nine months before Rosa Parks. The diverse contributions of these gutsy children and teens include 16-year-old Deborah Sampson, who masqueraded as Private Robert Shirtliffe and fought in the Revolutionary War, and 15-year-old Joe Nuxhall who, in the absence of many major league players-turned-soldiers, pitched for the Cincinnati Reds during WWII. Readers will appreciate the brief epilogues that explain what happened to each person in adulthood. For instance, Chuka, a nine-year-old Hopi Indian subjected to assimilation in white schools in 1899, "struggled to live in two worlds" throughout his life, and high school junior Peggy Eaton, who rode the rails in 1938, continued to live a life of adventure as a missionary and mountain climber. Informative sidebars provide additional, and sometimes humorous, historical asides to the biographical profiles (e.g., a story problem in a Confederate math book during the Civil War calculates the death toll of Yankees). Pictures, maps and prints help bring these stories to life, but it is the actions of these young people that will inspire readers to realize that they, too, can play a part in making America's history. Ages 10-up. (Aug.)