For History Education majors, the Praxis is a test you are required to take and pass before you can become certified to teach in schools. The links below will provide you with additional information about the Praxis.
Praxis — The official Praxis website
Study Companions, Study Guides, Practice Tests and other preparation materials — Pennsylvania Department of Education page on the Praxis tests
Praxis Testing Requirements in Pennsylvania — Pennsylvania Department of Education page on Praxis requirements
Pennsylvania Certification and Testing — PA-Educator.net website