How do we know about important moments from history if no one currently alive was there? Well, that's where primary sources come in! Primary sources are firsthand accounts of topics or events in the forms of artifacts, documents, recordings, and other things. This is how we have knowledge and access to significant moments from hundreds--and even millions--of years ago. In this set, readers explore incredible primary sources from history, such as the Bill of Rights, the U.S. Constitution, the Magna Carta, and more.