General

Library of Congress
https://loc.gov/library/libarch-digital.html

National Park Service – General
http://www.nps.gov/aboutus/index.htm

National Park Service – Chesapeake Bay
http://www.nps.gov/chba/index.htm

Smithsonian National Museum of American History
http://americanhistory.si.edu/

Smithsonian Folkways – Lesson Plans
http://www.folkways.si.edu/lesson-plans/smithsonian

National History Education Clearinghouse
http://teachinghistory.org/

Maryland State Archives
http://msa.maryland.gov/

Maryland Historical Society
http://www.mdhs.org/

“History of the USA” E-Text
http://www.usahistory.info/

“An Essential Guide to Enjoying National Parks Responsibly”
https://www.loveholidays.com/holidays/enjoying-us-national-parks-responsibly/#chapter

Native American History

National Museum of the American Indian
http://nmai.si.edu/

History Channel – Native American Cultures
http://www.history.com/topics/native-american-history/native-american-cultures

African American History

Maryland Commission on African American History and Culture
http://africanamerican.maryland.gov/resources/

Smithsonian National Museum of African American History & Culture
http://www.nmaahc.si.edu/

Pathways to Freedom: Maryland and the Underground Railroad
http://pathways.thinkport.org/resources/

For more information on Civil War, African American, and Railroad history, see Other Resources under the Dig Deeper tab.