This photo taken on Feb. 23, 2023 shows a prison used for holding slaves on Changuu Island, also known as Prison Island, in Zanzibar, Tanzania.
Zanzibar was once an important transit port in East Africa. From the late 18th century to the early 19th century, it became the largest slave market in the region and the last to be closed in the world. A small portion of Zanzibar's slave trade market sites has been preserved to remind people of the dark history.
The UN International Day of Remembrance of the Victims of Slavery and the Transatlantic Slave Trade is observed on March 25 each year. (Xinhua/Dong Jianghui)
This photo taken on Feb. 23, 2023 shows a prison used for holding slaves on Changuu Island, also known as Prison Island, in Zanzibar, Tanzania.
Zanzibar was once an important transit port in East Africa. From the late 18th century to the early 19th century, it became the largest slave market in the region and the last to be closed in the world. A small portion of Zanzibar's slave trade market sites has been preserved to remind people of the dark history.
The UN International Day of Remembrance of the Victims of Slavery and the Transatlantic Slave Trade is observed on March 25 each year. (Xinhua/Dong Jianghui)
This photo taken on Feb. 23, 2023 shows Changuu Island, also known as Prison Island, in Zanzibar, Tanzania.
Zanzibar was once an important transit port in East Africa. From the late 18th century to the early 19th century, it became the largest slave market in the region and the last to be closed in the world. A small portion of Zanzibar's slave trade market sites has been preserved to remind people of the dark history.
The UN International Day of Remembrance of the Victims of Slavery and the Transatlantic Slave Trade is observed on March 25 each year. (Xinhua/Dong Jianghui)
This photo taken on Feb. 23, 2023 shows a prison used for holding slaves on Changuu Island, also known as Prison Island, in Zanzibar, Tanzania.
Zanzibar was once an important transit port in East Africa. From the late 18th century to the early 19th century, it became the largest slave market in the region and the last to be closed in the world. A small portion of Zanzibar's slave trade market sites has been preserved to remind people of the dark history.
The UN International Day of Remembrance of the Victims of Slavery and the Transatlantic Slave Trade is observed on March 25 each year. (Xinhua/Dong Jianghui)
This photo taken on Feb. 23, 2023 shows a prison used for holding slaves on Changuu Island, also known as Prison Island, in Zanzibar, Tanzania.
Zanzibar was once an important transit port in East Africa. From the late 18th century to the early 19th century, it became the largest slave market in the region and the last to be closed in the world. A small portion of Zanzibar's slave trade market sites has been preserved to remind people of the dark history.
The UN International Day of Remembrance of the Victims of Slavery and the Transatlantic Slave Trade is observed on March 25 each year. (Xinhua/Dong Jianghui)
Tourists visit a basement used for holding slaves at St. Monica's Hostel in Zanzibar, Tanzania, Feb. 23, 2023.
Zanzibar was once an important transit port in East Africa. From the late 18th century to the early 19th century, it became the largest slave market in the region and the last to be closed in the world. A small portion of Zanzibar's slave trade market sites has been preserved to remind people of the dark history.
The UN International Day of Remembrance of the Victims of Slavery and the Transatlantic Slave Trade is observed on March 25 each year. (Xinhua/Dong Jianghui)
Photos of slaves are seen at the East African Slave Trade Exhibit in Zanzibar, Tanzania, Feb. 23, 2023.
Zanzibar was once an important transit port in East Africa. From the late 18th century to the early 19th century, it became the largest slave market in the region and the last to be closed in the world. A small portion of Zanzibar's slave trade market sites has been preserved to remind people of the dark history.
The UN International Day of Remembrance of the Victims of Slavery and the Transatlantic Slave Trade is observed on March 25 each year. (Xinhua/Dong Jianghui)
This photo taken on Feb. 23, 2023 shows a basement used for holding slaves at St. Monica's Hostel in Zanzibar, Tanzania.
Zanzibar was once an important transit port in East Africa. From the late 18th century to the early 19th century, it became the largest slave market in the region and the last to be closed in the world. A small portion of Zanzibar's slave trade market sites has been preserved to remind people of the dark history.
The UN International Day of Remembrance of the Victims of Slavery and the Transatlantic Slave Trade is observed on March 25 each year. (Xinhua/Dong Jianghui)
This photo taken on Feb. 23, 2023 shows a view of the East African Slave Trade Exhibit in Zanzibar, Tanzania.
Zanzibar was once an important transit port in East Africa. From the late 18th century to the early 19th century, it became the largest slave market in the region and the last to be closed in the world. A small portion of Zanzibar's slave trade market sites has been preserved to remind people of the dark history.
The UN International Day of Remembrance of the Victims of Slavery and the Transatlantic Slave Trade is observed on March 25 each year. (Xinhua/Dong Jianghui)
This photo taken on Feb. 23 , 2023 shows a slave trade monument in Zanzibar, Tanzania.
Zanzibar was once an important transit port in East Africa. From the late 18th century to the early 19th century, it became the largest slave market in the region and the last to be closed in the world. A small portion of Zanzibar's slave trade market sites has been preserved to remind people of the dark history.
The UN International Day of Remembrance of the Victims of Slavery and the Transatlantic Slave Trade is observed on March 25 each year. (Xinhua/Xie Hao)
This photo taken on Feb. 23, 2023 shows the Christ Church Anglican Cathedral and a slave trade monument (R) in Zanzibar, Tanzania.
Zanzibar was once an important transit port in East Africa. From the late 18th century to the early 19th century, it became the largest slave market in the region and the last to be closed in the world. A small portion of Zanzibar's slave trade market sites has been preserved to remind people of the dark history.
The UN International Day of Remembrance of the Victims of Slavery and the Transatlantic Slave Trade is observed on March 25 each year. (Xinhua/Dong Jianghui)
This photo taken on Feb. 23, 2023 shows a prison used for holding slaves on Changuu Island in Zanzibar, Tanzania.
Zanzibar was once an important transit port in East Africa. From the late 18th century to the early 19th century, it became the largest slave market in the region and the last to be closed in the world. A small portion of Zanzibar's slave trade market sites has been preserved to remind people of the dark history.
The UN International Day of Remembrance of the Victims of Slavery and the Transatlantic Slave Trade is observed on March 25 each year. (Xinhua/Dong Jianghui)
