The Gilder Lehrman collection of American history resources includes more than 70,000 historical items. Resource types include lesson plans, essays, online exhibitions, study guides, videos, and more! Most primary sources include a printable PDF version, complete citation, and questions for discussion. Registration with an active email address, mailing address, and phone number is required for access to most of the Gilder Lehrman library of primary sources. Some resources require an additional subscription fee or school affiliation credential.