Examines the history of money, including the barter system, early trade in North America, unusual types of money such as huge stone disks and salt bars, and the first paper money
A chronological introduction to the civilizations of western AFrica explains the importance of the most significant time periods in the history of the kingdoms of Ghana, Mali, and Songhay.
An exciting new Adventures in Reading series designed to capture the reluctant reader's attention with captivating photos and descriptions of nature's raw fury. This book showcases and explains tornadoes that have made headlines in recent years. Kids' natural fascination with destructive natural phenomena keeps their interest high while reading this series.