Read the exciting story of america's celebrated explorers, Meriwether Lewis and William clark.

Find out why iron was once more valuable than gold

Trace the achievements of many great mathematicians through the ages

Meet some of the greatest artists the world has ever known

Explore different cultures around the globe in this step-by-step guide to making crafts from six continents.

Meet Animals that have crawled, flown, hopped,d or slithered across North America for millions of years.

Learn how math can help you understand America's past.