Trace the history of commercial air travel and find out how today's engineers and scientists are revolutionizing the field.Calling All Innovators series introduces students to careers in science and technology. The complex text allows readers (Grades 5-8) to determine the main idea and explain how it is supported by key details. For hundreds of years, humans dreamed of flying through the sky they way they saw birds do. Since the first successful flights in the early 20th century, air travel has grown to become one of the world's most important methods of transportation. Readers will find out what it takes to build their own careers in this fascinating field.