When we get sick, our doctors give us medicine. When we want to visit our grandparents across the country, we hop on a plane. And when we want something in our community to change, we vote for people who share our ideas. A lot of the things we have and do now began as strange or challenging ideas--or even accidents! Young readers will discover the history behind events that changed our world--and the people who made them possible. Photos and accessible text bring history to the forefront in this Pebble Explore series.