Composite Image of items featured in How We Know What We Know

How We Know What We Know

Methods, tools, and sources used to study African American history and culture

One thing has not changed. That is the need to draw inspiration and guidance from the past. And through that inspiration, people will find tools and paths that will help them live their lives.

Lonnie G. Bunch III, Secretary of the Smithsonian Institution and Founding Director of NMAAHC

History informs, engages, and empowers us. It reveals truths about our present and future. It is also challenged and contested and requires authentication. African American history is no exception. In fact, because African American history has been long discounted as not being recorded or tangible, the access to and rare nature of African American history often receives greater scrutiny.

African American history has been studied using traditional methodology, research, and sources. It has also pioneered new ways to consider the past, including oral history, conservation, family history, and more. Black scholars and practitioners who engaged in various methodologies and served as role models for later generations include historian Carter G. Woodson, linguist Lorenzo Dow Turner, museum founder Margaret Burroughs, genealogist Tony Burroughs, and scholar Joseph Harris.

The stories, images, and artifacts put forth in the National Museum of African American History and Culture's exhibitions are based on sound and accepted methodology and research that not only authenticate what is presented but also help to excite the learning in all of us.

Photograph of formerly enslaved men

Remembering Enslavement

Oral History

Photograph of formerly enslaved men

Remembering Enslavement

Oral history is a field of study and a method of gathering, preserving, and interpreting the voices and memories of people, communities, and participants in past events. The methodology provides personal perspectives and reflection on key moments in history.

The African American practice of passing on knowledge through oral history can be traced back to the centuries-old griot traditions in African cultures. While early African societies kept meticulous records, including the treasured Mali manuscripts, oral history was also considered an essential resource for passing down history.

Enslaved African people were denied the ability to read or write from the time they arrived in the western Atlantic colonies. They brought with them their memories, including knowledge of skills, cultural traditions, faith, and more. Information was passed down orally through the generations. Renowned author, researcher, and family historian Alex Haley stated, “When a griot dies, it is as if a library has burned to the ground.”

Oral histories have faced scrutiny regarding their credibility as historical sources but are now more widely accepted among scholars as a viable research tool. The preparedness of the interviewer, the questions asked, and the rapport between the interviewer and subject all impact the quality and accuracy of an oral history interview.

Today, repositories house treasure troves of oral histories of those who lived through and survived slavery, providing first-person accounts of work, family, the slave trade, communities, faith, culture, and more. The Library of Congress, for example, maintains the rich collection of the 1930s Works Progress Administration (WPA) Slave Narratives Project recordings—the largest effort to collect the voices and stories of formerly enslaved African Americans. Black voices humanize the history and tell the American story through the African American lens.

Video promo image for What is Oral History

“What is Oral History?”


Archaeology, a subfield of anthropology, is the study of human cultures—using site excavation, material culture analysis, cultural script and structures as tools for research and understanding. Archaeology may be conducted on land (terrestrial) or underwater (maritime). Archaeological research provides insight into the lived experiences of people and groups who did not leave behind a written record.

NMAAHC is a partner and host of the Slave Wrecks Project (SWP), an international collaborative project and cutting-edge effort to locate, study, and present the underwater sites of slavery associated with the Transatlantic Slave Trade network. The project convenes researchers, practitioners, and institutions who employ methodologies including maritime and terrestrial archaeology to take a distinct approach to the study of slave shipwrecks around the world. NMAAHC’s partners and collaborators include the George Washington University, National Park Service, Iziko Museums of South Africa, Diving With a Purpose, and the Society of Black Archaeologists.

Museum curators rely on the sound scholarship of archaeologists, whose work provides critical insight into the history of enslaved and free Black people in the United States and throughout the African Diaspora. Archaeology helps the Museum share the global history of slavery.

Today the field is looking at ways to close the racial gap and train a new cohort of archaeologists of color, and to identify, prioritize, and secure funding for projects focused on African Diasporic sites. The effort is also regarded as a tool for restorative justice and decolonization.

Photograph of team working at site

Kamau Sadiki, of Diving With a Purpose and the Slave Wrecks Project, works on a wreck site in Mobile, Alabama

Image of muster roll document

African American Patriots


Image of muster roll document

African American Patriots

Archives contain a variety of documents, including receipts, wills, letters, service records, and land and tax records, among others. These materials are rich resources for piecing together the stories of past events and the lives of people who took part in them. Museums use archival material to enhance our knowledge of the past and to create more in-depth, engaging exhibitions.

African American people are documented in archival records in a variety of ways and appear as both authors and subjects of archival material. In studying slavery, information from documents produced by formerly enslaved people—including slave narratives, written sermons and speeches, newspapers, and abolitionist pamphlets—provide Black perspectives from the periods of slavery and Reconstruction. Documents written about Black people by non-Black people, like the financial and personal records written by enslavers, provide another perspective, including observations and assumptions. Both types of sources help provide insight into the lived experiences of free and enslaved Black people.

Additionally, maps provide a lens into the physical spaces Black people occupied, including a sense of the terrain they would have encountered in their attempts to escape, their proximity to water, and the distance from nearby plantation sites where loved ones were held in bondage. Plat maps often show the layout of plantation sites, including the location of slave dwelling sites and burial grounds. Maps also reveal sites of freedom, from free communities of color to rebellion routes.

When studying documents, it is important to consider who is the author and what the author’s intent was. Documents, like artifacts and oral history, reveal the mores, motivations, aspirations, and daily lives of their creators and the societies they emerge from. Abolitionist pamphlets inform us of the values of their authors just as bills of sale inform us about those who authored them.

Photograph of Archivist Ja-Zette Marshburn

“What are Archives?”

I think we need to recognize that if we can make history personal, find the connections with the public, we’ll be able to help them see the broader issues. Anyone who’s seen the great interest in genealogy recognizes there’s a thirst for history.

Lonnie G. Bunch III, Secretary of the Smithsonian Institution and Founding Director of NMAAHC

Albumen print of enslaved women and their children near Alexandria, Virginia

Enslaved women and their children near Alexandria, Virginia, 1861–1862

Genealogy & Family History

Albumen print of enslaved women and their children near Alexandria, Virginia

Enslaved women and their children near Alexandria, Virginia, 1861–1862

Genealogy is the study of family history by generation.

Family history and genealogy combined help us keep personal narratives at the center of histories being explored and told. We use both to learn more about our collections, investigate historical events, and examine community and cultural practices. Researching people and their families can illuminate details about the lives of individuals and communities and paint fuller pictures of the past.

Black families have been stewards of African American history and culture, serving as grassroots historians, researchers, and archivists, and maintaining private family collections for generations. Collection items include oral history recordings, family documents, and personal objects. Some of the Museum’s most treasured collection objects were donated by descendants who not only cared for these objects but combined them with genealogy research to form a powerful, nuanced understanding of African American history and material culture and the larger American story. Elaine Thompson donated her ancestor’s freedom papers; Richard Collins-Diggs donated his grandfather's family Bible. In addition to African American families, other family histories and genealogies maintained in private personal collections of descendants of enslavers are valuable to African Americans seeking to find out more about the lives of their enslaved family members.

Through the Robert F. Smith Center for the Digitization and Preservation of African American History and Culture and the Robert F. Smith Explore Your Family History Center, the Museum is committed to helping visitors discover and preserve their own family histories. The valuable resources help all visitors embrace the study of African American history and culture using genealogy and family history research to better understand the past.

Lisa Crawley, NMAAHC genealogy reference assistant

“What is Genealogy?”

Statistical Data

We often think of statistics and numerical data as related to economics. While that is true, statistical data is also a very important aspect of digital humanities projects and a research tool that allows museums to create richer stories. To tell the stories of slavery and freedom at the National Museum of African American History and Culture, curators explored several databases. The statistics also allow us to tell a human story, both in terms of the human cost, but also in terms of resilience. Statistics show us the regions from where people were taken, allowing us to discuss the cultures, traditions, religions, and languages they brought across the Atlantic that still exist around us today. Statistics tell us more about the world we live in, and the histories of people, places, and events. When we place them in a museum setting, they can also be powerful forces to bring history to life.

Photo of Middle Passage exhibit within Slavery and Freedom.

Voyages and Lives

A child's circular skirt in a floral print with a pleated flounce on the hem. The main fabric is a plain weave natural fiber fabric with a cream ground and a repeating pattern of small four-petal flowers in red, purple, blue, and tan.

Performing Object Research

Material Culture & Conservation

A child's circular skirt in a floral print with a pleated flounce on the hem. The main fabric is a plain weave natural fiber fabric with a cream ground and a repeating pattern of small four-petal flowers in red, purple, blue, and tan.

Performing Object Research

Objects are perhaps the most familiar part of our world. We see them in glass cases in museums, as well as in our homes. But we don’t often consider what they tell us about the past and people who lived there. Objects contain the stories and voices of those who made and used them. Museums research objects in two main ways: conducting historical research, and working with conservators to learn about the material aspects of objects.

Historical research involves investigating the production history of objects to determine their age. We also examine objects to locate any makers' markings on them, which can help narrow down exactly when objects were created, as well as where and by whom. The final thing we look at are the names of people and places included in documents. This research allows us to tell stories about the people represented by the object. Not all objects have markings, however, and that is where conservation is helpful.

Conservators examine the materials that objects are made of, how they are made, and how they were used in the past. They can show us how people use and repair objects over time, like patches on clothing or new pegs on a violin. Their work is also important for making sure that objects are authentic, as sometimes people alter objects and try to hide their history.

Objects are pieces of people’s lives, and historical and conservation research helps us uncover deeper, more interesting stories.

NMAAHC Conservator, Antje Neumann

"What is Conservation?"

There is nothing more powerful than a people, than a nation, steeped in its history. And there are few things as noble as honoring our ancestors by remembering.

Lonnie G. Bunch III, Secretary of the Smithsonian Institution and Founding Director of NMAAHC