Courtesy of Craig Allen via Flickr

The Louisiana Purchase
This is a great introduction to the Louisiana Purchase and the growth of the US.

Discovering Lewis & Clark
At this site you can go on a virtual western adventure and follow along the famous expedition. Read biographies of the explorers and their journal excerpts, and learn about the people and wildlife they encountered.

The Civil War
This site will introduce you to the Civil War – why the war happened, who fought in it and the battles that took place. If you have an assignment on the Civil War this site will give you the information you need to complete it.

Understanding Slavery
Few human practices have provoked such deep and widespread outrage as the practice of one human being enslaving another. So why has slavery survived for thousands of years? How did it become so important to civilization? Explore the ways that slavery has been woven into the fabric of societies in America and around the world.

Westward Movement
This is a great link page to lots of information about the movement West, including the Oregon Trail, the famous people who opened the West and the impact on the Native American tribes.