Outlines the political events prior to the Civil War as the United States expanded its territories to include new states and conflicts arose over the issue of slavery.

At this comprehensive site, students learn about the first cross-country mail courier service in the United States, the Pony Express.

Learn about the Kansas-Nebraska Act. Passed in 1854, it reopened the debate over the expansion of slavery in the United States.

This clickable map of the United States gives students access to research information from history and tourism to attractions and famous historic figures.

Everything you wanted to know and more about Harry S. Truman, from biographical information to love letters.

In-depth information about the Red Scare that started in the United States at the end of World War I, and ended in the early 1920s. Discusses its history, including strikes in Seattle and Boston, causes, and results of the anti-communist...

In this brief encyclopedia article, you find the effect the Louisiana Purchase had on African-Americans because of the new land added to the United States. There is a link to a website that gives additional information about the...