Guide Kwesi Blankson leads U.S. Vice President Kamala Harris and Second Gentleman Doug Emhoff as they tour the Cape Coast slave castle during her week-long trip to Ghana, Tanzania and Zambia, in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

Guide Kwesi Blankson leads U.S. Vice President Kamala Harris and Second Gentleman Doug Emhoff as they tour the Cape Coast slave castle during her week-long trip to Ghana, Tanzania and Zambia, in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

Guide Kwesi Blankson leads U.S. Vice President Kamala Harris and Second Gentleman Doug Emhoff as they tour the Cape Coast slave castle during her week-long trip to Ghana, Tanzania and Zambia, in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

U.S. Vice President Kamala Harris and Second Gentleman Doug Emhoff tour the Cape Coast slave castle during her week-long trip to Ghana, Tanzania and Zambia, in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

U.S. Vice President Kamala Harris, accompanied by U.S. Second Gentleman Doug Emhoff, arrives at the Cape Coast slave castle during her week-long trip to Ghana, Tanzania and Zambia, in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

Guide Kwesi Blankson leads U.S. Vice President Kamala Harris and Second Gentleman Doug Emhoff as they tour the Cape Coast slave castle during her week-long trip to Ghana, Tanzania and Zambia, in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

View of canoes docked at the beach as seen from the slave castle in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

A woman holds flags at the Emintsimadze Palace as people await the arrival of U.S. Vice President Kamala Harris during her week-long trip to Ghana, Tanzania and Zambia, in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

U.S. Vice President Kamala Harris tours the Cape Coast slave castle during her week-long trip to Ghana, Tanzania and Zambia, in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

Guide Kwesi Blankson leads U.S. Vice President Kamala Harris and Second Gentleman Doug Emhoff as they tour the Cape Coast slave castle during her week-long trip to Ghana, Tanzania and Zambia, in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

Guide Kwesi Blankson leads U.S. Vice President Kamala Harris and Second Gentleman Doug Emhoff as they tour the Cape Coast slave castle during her week-long trip to Ghana, Tanzania and Zambia, in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

Guide Kwesi Blankson leads U.S. Vice President Kamala Harris and Second Gentleman Doug Emhoff as they tour the Cape Coast slave castle during her week-long trip to Ghana, Tanzania and Zambia, in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

People wave flags outside the Cape Coast slave castle as they await the arrival of U.S. Vice President Kamala Harris during her week-long trip to Ghana, Tanzania and Zambia, in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

U.S. Second Gentleman Doug Emhoff is draped in traditional kente cloth as he meets with Oguaa chief Osabarimba Kwesi Atta II and community leaders, at the Emintsimadze Palace in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

U.S. Vice President Kamala Harris lays a wreath in a slave dungeon during a tour at the Cape Coast slave castle during her week-long trip to Ghana, Tanzania and Zambia, in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

U.S. Vice President Kamala Harris delivers remarks after touring the Cape Coast slave castle during her week-long trip to Ghana, Tanzania and Zambia, in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

U.S. Vice President Kamala Harris and U.S. Second Gentleman Doug Emhoff are draped in traditional kente cloth as they meet with the Oguaa chief Osabarimba Kwesi Atta II and community leaders, at the Emintsimadze Palace in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

U.S. Second Gentleman Doug Emhoff is draped in traditional kente cloth as he meets with Oguaa chief Osabarimba Kwesi Atta II and community leaders, at the Emintsimadze Palace in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

U.S. Vice President Kamala Harris delivers remarks after touring the Cape Coast slave castle during her week-long trip to Ghana, Tanzania and Zambia, in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

U.S. Vice President Kamala Harris accompanied by U.S. Second Gentleman Doug Emhoff meets with Oguaa chief Osabarimba Kwesi Atta II and community leaders at the Emintsimadze Palace, in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

U.S. Vice President Kamala Harris delivers remarks after touring the Cape Coast slave castle during her week-long trip to Ghana, Tanzania and Zambia, in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

Guide Kwesi Blankson leads U.S. Vice President Kamala Harris as she tours the Cape Coast slave castle during her week-long trip to Ghana, Tanzania and Zambia, in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

U.S. Vice President Kamala Harris delivers remarks after touring the Cape Coast slave castle during her week-long trip to Ghana, Tanzania and Zambia, in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

U.S. Vice President Kamala Harris and Second Gentleman Doug Emhoff tour the Cape Coast slave castle during her week-long trip to Ghana, Tanzania and Zambia, in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

A young girl dressed in traditional clothing carries a bouquet at the Emintsimadze Palace as people await the arrival of U.S. Vice President Kamala Harris during her week-long trip to Ghana, Tanzania and Zambia, in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

U.S. Vice President Kamala Harris tours the Cape Coast slave castle during her week-long trip to Ghana, Tanzania and Zambia, in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

Guide Kwesi Blankson leads U.S. Vice President Kamala Harris and Second Gentleman Doug Emhoff as they tour the Cape Coast slave castle during her week-long trip to Ghana, Tanzania and Zambia, in Cape Coast, Ghana March 28, 2023. REUTERS/Francis Kokoroko 

U.S. Treasury Secretary Janet Yellen gives a speech after she visited the House of Slaves (Maison des Esclaves) at Goree Island off the coast of Dakar, Senegal January 21, 2023. REUTERS/Ngouda Dione 

U.S. Treasury Secretary Janet Yellen gives a speech after she visited the House of Slaves (Maison des Esclaves) at Goree Island off the coast of Dakar, Senegal January 21, 2023. REUTERS/Ngouda Dione 

U.S. Treasury Secretary Janet Yellen receives a pilgrim award certificate from Augustin Senghor, Mayor of the Goree Island, after she visited the House of Slaves (Maison des Esclaves) at Goree Island off the coast of Dakar, Senegal January 21, 2023. REUTERS/Ngouda Dione 

U.S. Treasury Secretary Janet Yellen signs the visitor book after she visited the House of Slaves (Maison des Esclaves) at Goree Island off the coast of Dakar, Senegal January 21, 2023. REUTERS/Ngouda Dione 

U.S. Treasury Secretary Janet Yellen gives a speech after she visited the House of Slaves (Maison des Esclaves) at Goree Island off the coast of Dakar, Senegal January 21, 2023. REUTERS/Ngouda Dione 

U.S. Treasury Secretary Janet Yellen stands at the 'Door of No Return' as she visits the House of Slaves (Maison des Esclaves) at Goree Island off the coast of Dakar, Senegal January 21, 2023. REUTERS/Ngouda Dione 

U.S. Treasury Secretary Janet Yellen stands at the 'Door of No Return' as she visits the House of Slaves (Maison des Esclaves) at Goree Island off the coast of Dakar, Senegal January 21, 2023. REUTERS/Ngouda Dione 

U.S. Treasury Secretary Janet Yellen stands at the 'Door of No Return' as she visits the House of Slaves (Maison des Esclaves) at Goree Island off the coast of Dakar, Senegal January 21, 2023. REUTERS/Ngouda Dione 

U.S. Treasury Secretary Janet Yellen signs the visitor book after she visited the House of Slaves (Maison des Esclaves) at Goree Island off the coast of Dakar, Senegal January 21, 2023. REUTERS/Ngouda Dione 

A resident walks past a statue commemorating the abolition of slavery in front of the House of Slaves museum, that will be relocated to the 'Freedom and Human Dignity' Square, on Goree island, off the coast of Dakar, Senegal July 3, 2020. Picture taken July 3, 2020. REUTERS/Zohra Bensemra 

A statue commemorating the abolition of slavery stands in front of the House of Slaves museum, before being relocated to the 'Freedom and Human Dignity' Square, on Goree island, off the coast of Dakar, Senegal July 3, 2020. Picture taken July 3, 2020. REUTERS/Zohra Bensemra 

A resident walks past a statue commemorating the abolition of slavery in front of the House of Slaves museum, that will be relocated to the 'Freedom and Human Dignity' Square, on Goree island, off the coast of Dakar, Senegal July 3, 2020. Picture taken July 3, 2020. REUTERS/Zohra Bensemra 

A statue commemorating the abolition of slavery stands in front of the House of Slaves museum, before being relocated to the 'Freedom and Human Dignity' Square, on Goree island, off the coast of Dakar, Senegal July 3, 2020. Picture taken July 3, 2020. REUTERS/Zohra Bensemra 

A person holds a "Black Lives Matter" sign as members of the ILWU and the A. Philip Randolph Institute (APRI) rally at the Port of Seattle, during part of a West Coast port shutdown for Juneteenth, which commemorates the end of slavery in Texas, two years after the 1863 Emancipation Proclamation freed slaves elsewhere in the United States, in Seattle, Washington, U.S. June 19, 2020. REUTERS/Lindsey Wasson 

People holding an International League of Peoples' Struggle banner listen to speakers as members of the ILWU and the A. Philip Randolph Institute (APRI) rally at the Port of Seattle, during part of a West Coast port shutdown for Juneteenth, which commemorates the end of slavery in Texas, two years after the 1863 Emancipation Proclamation freed slaves elsewhere in the United States, in Seattle, Washington, U.S. June 19, 2020. REUTERS/Lindsey Wasson 

Rich Austin, ILWU Local 19 President, holds a placard as members of the ILWU and the A. Philip Randolph Institute (APRI) rally at the Port of Seattle, during part of a West Coast port shutdown for Juneteenth, which commemorates the end of slavery in Texas, two years after the 1863 Emancipation Proclamation freed slaves elsewhere in the United States, in Seattle, Washington, U.S. June 19, 2020. REUTERS/Lindsey Wasson 

Gabriel Prawl, former president of ILWU Local 52, speaks to the crowd as members of the ILWU and the A. Philip Randolph Institute (APRI) rally at the Port of Seattle, during part of a West Coast port shutdown for Juneteenth, which commemorates the end of slavery in Texas, two years after the 1863 Emancipation Proclamation freed slaves elsewhere in the United States, in Seattle, Washington, U.S. June 19, 2020. REUTERS/Lindsey Wasson 

The Seattle skyline is seen as members of the ILWU and the A. Philip Randolph Institute (APRI) rally at the Port of Seattle, during part of a West Coast port shutdown for Juneteenth, which commemorates the end of slavery in Texas, two years after the 1863 Emancipation Proclamation freed slaves elsewhere in the United States, in Seattle, Washington, U.S. June 19, 2020. REUTERS/Lindsey Wasson 

Rick Williams, brother of John T. Williams, a Native American woodcarver killed by Seattle Police in 2010, speaks as members of the ILWU and the A. Philip Randolph Institute (APRI) rally at the Port of Seattle, during part of a West Coast port shutdown for Juneteenth, which commemorates the end of slavery in Texas, two years after the 1863 Emancipation Proclamation freed slaves elsewhere in the United States, in Seattle, Washington, U.S. June 19, 2020. REUTERS/Lindsey Wasson 

Jason Call, who is running for Congress in Washington's 2nd District, holds a "Black Lives Matter" sign as members of the ILWU and the A. Philip Randolph Institute (APRI) rally at the Port of Seattle, during part of a West Coast port shutdown for Juneteenth, which commemorates the end of slavery in Texas, two years after the 1863 Emancipation Proclamation freed slaves elsewhere in the United States, in Seattle, Washington, U.S. June 19, 2020. REUTERS/Lindsey Wasson 

A person holds a sign as members of the ILWU and the A. Philip Randolph Institute (APRI) rally at the Port of Seattle during part of a West Coast port shutdown for Juneteenth, which commemorates the end of slavery in Texas, two years after the 1863 Emancipation Proclamation freed slaves elsewhere in the United States, in Seattle, Washington, U.S. June 19, 2020. REUTERS/Lindsey Wasson 

Mariana Markova wears a mask with the words "I can?t breathe" as members of the ILWU and the A. Philip Randolph Institute (APRI) rally at the Port of Seattle during part of a West Coast port shutdown for Juneteenth, which commemorates the end of slavery in Texas, two years after the 1863 Emancipation Proclamation freed slaves elsewhere in the United States, in Seattle, Washington, U.S. June 19, 2020. REUTERS/Lindsey Wasson 

Members of the ILWU and the A. Philip Randolph Institute (APRI) rally at the Port of Seattle during part of a West Coast port shutdown for Juneteenth, which commemorates the end of slavery in Texas, two years after the 1863 Emancipation Proclamation freed slaves elsewhere in the United States, in Seattle, Washington, U.S. June 19, 2020. REUTERS/Lindsey Wasson 

The Space Needle and the Seattle skyline are seen as members of the ILWU and A. Philip Randolph Institute (APRI) rally at the Port of Seattle during part of a West Coast port shutdown for Juneteenth, which commemorates the end of slavery in Texas, two years after the 1863 Emancipation Proclamation freed slaves elsewhere in the United States, in Seattle, Washington, U.S. June 19, 2020. REUTERS/Lindsey Wasson 

Members of the ILWU and the A. Philip Randolph Institute (APRI) rally at the Port of Seattle during part of a West Coast port shutdown for Juneteenth, which commemorates the end of slavery in Texas, two years after the 1863 Emancipation Proclamation freed slaves elsewhere in the United States, in Seattle, Washington, U.S. June 19, 2020. REUTERS/Lindsey Wasson 

Fishermen are pictured in front of Goree Island off the coast of Dakar, Senegal, July 7, 2019. Goree island was one of the trans-Atlantic slave-trade gathering points from where slaves were shipped west in the 1700s and 1800s, and today is a UNESCO world heritage site. Picture taken July 7, 2019. REUTERS/Zohra Bensemra 

A boy stands beside the Bodo river in Kanga Nianze village, built on a former slave route, near Tiassale, Ivory Coast, July 15, 2019. Men and women captured in Ivory Coast and sold into slavery 400 years ago would take their final bath in the river before being loaded onto ships. Picture taken June 15, 2019. REUTERS/Luc Gnago 

A boy is pictured at Goree Island off the coast of Dakar, Senegal, July 8, 2019. Goree Island was one of the trans-Atlantic slave-trade gathering points from where slaves were shipped west in the 1700s and 1800s, and today is a UNESCO world heritage site. Picture taken July 8, 2019. REUTERS/Zohra Bensemra 

People stand beside a memorial beside the Bodo river in Kanga Nianze village, built on a former slave route, near Tiassale, Ivory Coast, July 21, 2019. Men and women captured in Ivory Coast and sold into slavery 400 years ago would take their final bath in the river before being loaded onto ships. Picture taken June 21, 2019. REUTERS/Luc Gnago 

Visitors walk though dungeons used to house female slaves at the Cape Coast Castle, one of several slave forts build along the Gold Coast in Ghana, July 28, 2019. Picture taken July 28,2019. REUTERS/Siphiwe Sibeko 

Canons are seen at the Cape Coast Castle, one of several slave forts build along the Gold Coast in Ghana, July 28, 2019. Picture taken July 28,2019. REUTERS/Siphiwe Sibeko 

Prince Tete and his friend Coudjoe stand at a point where it is believed slaves once crossed the River Pra on their journey to the coast, at Assin Praso, Ghana, July 23, 2019. REUTERS/Siphiwe Sibeko 

Tourists are seen at the Cape Coast Castle one of several slave forts build along the Gold Coast in Ghana, July 28, 2019. Picture taken July 28,2019. REUTERS/Siphiwe Sibeko