Background 

Hamilton is the capital of Bermuda, known for its status as a port city and as the center of Bermuda's commerce. It was created in the late 1700s and during this time into the 1800s, slavery was rampant. Hamilton, or Hamble Town, is mentioned in The History of Mary Prince when Prince is describing her experience of being sold and separated from her mother and siblings. In her retelling of the event, she recalls that they "took the road that led to Hamble Town" to get to the marketplace where Prince was to be sold (Prince). 

Sources:

 Date Hill was formerly a sugar plantation in Antigua. The small island is located in the Caribbean and was once owned by Thomas Sheppard (Date Hill). This island was once known for the sugar it produce and the abundant number of slaves to gather the sugar cane. This spot was also known for its beautiful views, which rich white families came it visit during the 1800s. This can be seen in "The History of Mary Prince" when the family travels to Date Hill for the holidays.

Cairo is the capital of Egypt and the largest city in the Arab countries. Currently, the population of the city holds 21.3 million, and the city is also known as the Great Cairo. It is located near Nile Delta and was the first city developed as Fustat in the conquest of Eygpt in 640. The flag is a half-white half blue flag with a circle in the middle. In the circle three buildings, a pyramid, and a block structure outline are depicted in a maroon color. The city is known historically for being a hub of religious, political, and trade endeavors.

The Persian Empire once spanned across present day Iran, Egypt, and Turkey. The people of the region typically referred to their land as "Iran", and the name was adopted in 1935. Persia has a rich history of unique art and architecture. For example, the "extraordinary architectural legacy of the Acheaminids [one of the the groups that ruled Persia] is best seen in the ruins of the opulent city of Persapolis" (Persian Art). The city features vast halls, plazas, towers, etc. In more contemporary time, Persia was a huge trading power of the 19th century.

Sybaris is an ancient Greek city located in Southern Italy. Founded in the 7th century BC, it became known for being a luxurious, yet hedonistic, place for their excessive lifestyle. This was largely due to their fertile lands and thriving port, and the city was said to have had up to 100,000 occupants at its peak. They were the major city in their region, controlling several smaller cities. Like much of the ancient world, slavery was an important aspect of wealth in the city, with many stories of the wealth of Sybaris's citizens involving the number of enslaved people they controlled.

In general, the late 1700s and early 1800s, European explorers forced their way through the insides of western and central Africa. During this time, European nations greatly traded for slaves, ivory and gold. Slaves were purely treated as property, and often times separated from their families and forced from their homelands at an extremely young age to spend their lives working. 

In "Epistle to William Wilberfroce," Anna Laeticia Barbauld mentions Africa when she says:

China is the most populous country in the world with a population exceeding 1.4 billion people. It can be traced back to the 21 century BCE. In the 1700s China was ruled by the Qing dynasty, which was the last orthodox dynasty in Chinese history. During the late 17th century and early 18th century, China was known for their exports like cotton, silk, tea, and ceramics. 

China is the most populous country in the world with a population exceeding 1.4 billion people. It can be traced back to the 21 century BCE. In the 1700s China was ruled by the Qing dynasty, which was the last orthodox dynasty in Chinese history. During the late 17th century and early 18th century, China was known for their exports like cotton, silk, tea, and ceramics. 

England is perhaps the most famous, or infamous, of the area known as the United Kingdom. The English are commonly known as one of the largest colonizers in the world, having at one point occupied or invaded almost every single land mass on this world. England was also a prominent player in the Trans-Atlantic Slave trade, although slavery was never officially legalized in the country.