Formerly known as Teaching with Primary Sources Quarterly, this online journal presents strategies and resources for the K-12 classroom from the Library of Congress. The TPS Journal is published quarterly by the Library of Congress Educational Outreach Division in collaboration with the TPS Educational Consortium.

The decades between the close of the Civil War and the beginning of World War II were a time of profound social turmoil in the United States. While baseball as a sport was becoming tremendously popular around the still-young nation, Americans experienced the sport in various ways reflecting their social and ethnic backgrounds.

During World War II, the United States was at war with Japan. By an executive order of President Franklin D. Roosevelt, all Americans of Japanese descent living in military exclusion zones on the West Coast were forced to leave their homes and move to internment camps.

This collection of resources is based upon the children's book, Baseball Saved Us," a selection of the Smithsonian's "Our Story" series (National Museum of American History) set during the Japanese Internment.