Archaeological finds show that Sierra Leone has been inhabited continuously for at least 2,500 years.

Early history
Fragments of prehistoric pottery from Kamabai Rock Shelter
Archaeological finds show that Sierra Leone has been inhabited continuously for at least 2,500 years, populated by successive movements from other parts of Africa. The use of iron was introduced to Sierra Leone by the 9th century, and by AD 1000 agriculture was being practiced by coastal tribes. Sierra Leone's dense tropical rainforest partly isolated it from other precolonial African cultures and from the spread of Islam.
European contacts with Sierra Leone were among the first in West Africa. In 1462 Portuguese explorer Pedro da Cintra mapped the hills surrounding what is now Freetown Harbour, naming the oddly shaped formation Serra Lyoa (Lion Mountains).
At this time the country was inhabited by numerous politically independent native groups. Several different languages were spoken, but there was similarity of religion. In the coastal rainforest belt there were Bulom speakers between the Sherbro and Freetown estuaries, Loko North of the Freetown estuary to the Little Scarcies, Temne at the mouth of the Scarcies and also inland, and Limba farther up the Scarcies.
In the hilly savannah North of all of these were Susu and Fula. The Susu traded regularly with the coastal peoples along river valley routes, bringing salt, clothes woven by the Fula, good quality iron work, and some gold.
European contact and slavery (1400s)
Portuguese ships began visiting regularly in the late 1400s, and for a while they maintained a fort on the North shore of the Freetown estuary. The estuary is one of the few good harbours on West Africa's surf-pounded "Windward Shore" (Liberia to Senegal), and also has a good watering spot; it soon became a favourite destination of European mariners. Some of the Portuguese stayed permanently, trading and intermarrying with the local people.
When Europeans first arrived at Sierra Leone, slavery among the African peoples of the area was rare. Historian Walter Rodney has searched the reports of the early Portuguese travelers to the area and found mention in them of only one, quite particular, kind of slavery among the Africans. Rodney says that the Portuguese reports generally were detailed and thorough, especially concerning trade, and that it is unlikely, if slavery had been an important local institution, that the reports would have been so silent about it. The one particular type of slavery that they did mention was this: a person in trouble in one kingdom could go to another and place himself under the protection of its king, whereupon he became a "slave" of that king, obliged to provide free labour and liable for sale. (Such a person would likely have retained some rights and had some opportunity to rise in status as time passed.)
If the Africans were not much interested in acquiring slaves, the Portuguese - and the Dutch, French, and English who arrived later - certainly were. Initially their method was to cruise the coast, conducting quick kidnapping raids when opportunities presented themselves. Soon, however, they found local actors willing to partner with them in these vicious but profitable affairs: some chiefs were willing to part with a few of the less desirable members of their tribes for a price; others went into the war business - a bevy of battle captives could be sold for a fortune in European rum, cloth, beads, copper, or muskets.
This early slaving was essentially an export business. The use of slaves as labourers by the local Africans appears to have developed only later. It may first have occurred under coastal chiefs in the late 1700s:
The slave owners were originally white and foreigners, but the late eighteenth century saw the emergence of powerful slave-trading chiefs, who were said to own large numbers of 'domestic slaves'."
For example in the late 1700s, chief William Cleveland had a large "slave town" on the mainland opposite the Banana Islands, whose inhabitants "were employed in cultivating extensive rice fields, described as being some of the largest in Africa at the time ..." The existence of an indigenous slave town was recorded by an English traveler in 1823. Known in the Fula language as a rounde, it was connected with the Sulima Susu's capital city, Falaba; its inhabitants worked at farming.
It is important to note that this local African slavery was slavery of a much less harsh and brutal form than the slavery practised by Europeans on, for example, the plantations of the United States, West Indies, and Brazil. The local slavery has been described, for example, by anthropologist M. McCulloch:
Slaves were housed close to the fresh tracts of land they cleared for their masters. They were considered part of the household of their owner, and enjoyed limited rights. It was not customary to sell them except for a serious offense, such as adultery with the wife of a freeman. Small plots of land were given to them for their own use, and they might retain the proceeds of crops they grew on these plots; by this means it was possible for a slave to become the owner of another slave. Sometimes a slave married into the household of his master and rose to a position of trust; there is an instance of a slave taking charge of a chiefdom during the minority of the heir. Descendants of slaves were often practically indistinguishable from freemen.
Slaves were sometimes sent on errands outside the kingdoms of their masters and returned voluntarily. Speaking specifically of the era around 1700, Fyfe relates that, "Slaves not taken in war were usually criminals. In coastal areas, at least, it was rare for anyone to be sold without being charged with a crime."
Voluntary dependence reminiscent of that described in the early Portuguese documents mentioned at the beginning of this section was still present in the 1800s. It was called pawning; Abraham describes a typical variety
A freeman heavily in debt, and facing the threat of the punishment of being sold, would approach a wealthier man or chief with a plea to pay of his debts 'while I sit on your lap'. Or he could give a son or some other dependent of his 'to be for you', the wealthy man or chief. This in effect meant that the person so pawned was automatically reduced to a position of dependence, and if he was never redeemed, he or his children eventually became part of the master's extended family. By this time, the children were practically indistinguishable from the real children of the master, since they grew up regarding one another as brothers.
Some observers consider the term "slave" to be more misleading than informative in describing the local practice. Abraham says that in most cases, "subject, servant, client, serf, pawn, dependent, or retainer" would be more accurate. Domestic slavery was abolished in Sierra Leone in 1928. McCulloch reports that at that time, amongst Sierra Leone's largest present-day ethnolinguistic group, the Mende, who then had about 560,000 people, about 15 per cent of the population (ie. 84,000) were domestic slaves. He also says that "Singulary little change followed the 1928 decree; a fair number of slaves returned to their original homes, but the great majority remained in the villages in which their former masters had placed them or their parents."
According to Fyfe, "it was estimated in 1789 that 74,000 slaves were exported annually from West Africa, about 38,000 by British firms." In 1788 a European apologist for the slave trade estimated the annual total exported from between the Rio Nunez (110 km North of Sierra Leone) and the Sherbro as 3,000. The transatlantic slave trade was banned by the British in 1807, but illegal slave trading continued for several decades after that.
Mane Invasions (1500s)
In the mid 1500s occurred events of profound importance in the modern history of Sierra Leone: these were the Mane invasions. The Mane (also called Mani), Southern members of the Mande language group, were a warrior people, well-armed and well-organised, who lived East and possibly somewhat North of present-day Sierra Leone, occupying a belt North of the coastal peoples. Sometime in the early 1500s they began moving South. According to some Mane who spoke to a Portuguese (Dornelas) in the late 1500s, their travels had begun as a result of their Chief's, a woman named Macario, having been expelled from the imperial city in Mandimansa, their homeland. Their first arrival at the coast was East of Sierra Leone, at least as far away as the Cess River and likely farther. They advanced up the coast toward Sierra Leone, conquering as they went. They incorporated large numbers of the people they conquered into their army, with the result that by the time they reached Sierra Leone, the rank and file of their army consisted mostly of coastal peoples; the Mane were its commanding group. The Mane used small bows, which enabled Manes to reuse their enemies' arrows against them, while the enemy could make no use of the Manes' short arrows. Rodney describes the rest of their equipment thus:
The rest of their arms consisted of large shields made of reeds, long enough to give complete cover to the user, two knives, one of which was tied to the left arm, and two quivers for their arrows. Their clothes consisted of loose cotton shirts with wide necks and ample sleeves reaching down to their knees to become tights. One striking feature of their appearance was the abundance of feathers stuck in their shirts and their red caps.
By 1545 they had reached Cape Mount, not far from the South-Eastern corner of present-day Sierra Leone. Their conquest of Sierra Leone occupied the ensuing 15 to 20 years, and resulted in the subjugation of all or nearly all of the indigenous coastal peoples - who were known collectively as the Sapes - as far North as the Scarcies. The present ethnogeography of Sierra Leone is largely a reflection of this momentous two decades. The degree to which the Mane supplanted the original inhabitants varied from place to place. Thus in the present-day Temne we have a people who partly withstood the Mane onslaught: they kept their language, but became ruled by a line of Mane kings. The present-day Loko and Mende are the result of a more complete submersion of the original culture: their languages are similar, and both essentially Mande. In their oral tradition the Mende still describe themselves as being a mixture of two peoples: they say that their original members were hunters and fishers who populated the area sparsely in small peaceful settlements; they say that their leaders came later, in a recent historical period, bringing with them the arts of war, and also building larger, more permanent villages. This history receives support from the facts that their population consists of two different racial types, and their language and culture show signs of a layering of two different forms: they have both matrilineal and patrilineal inheritance, for instance.
The Mane invasions militarised Sierra Leone. The Sapes had been un-warlike, but after the invasions, right until the late 1800s, bows, shields, and knives of the Mane type had become ubiquitous in Sierra Leone, as had the Mane battle technique of using squadrons of archers fighting in formation, carrying the large-style shields. Villages became fortified. The usual method of erecting two or three concentric palisades, each 12 to 20 feet (4 to 7 m) high, created a formidable obstacle to attackers - especially since, as some of the English observed in the 1800s, the thigh-thick logs planted into the earth to make the palisades often took root at the bottom and grew foliage at the top, so that the defenders occupied virtually a living wall of wood. A British officer who observed one of these fortifications around the time of the 1898 Hut Tax war ended his description of it thus:
No one who has not seen these fences can realize the immense strength of them. The outer fence at Hahu I measured in several places, and found it to be from 2 to 3 feet thick, and most of the logs, or rather trees, of which it was formed, had taken root and were throwing out leaves and shoots.
He also said that English artillery could not penetrate all three fences.At that time, at least among the Mende, "a typical settlement consisted of walled towns and open villages or towns surrounding it."
After the invasions, the Mane sub-chiefs among whom the country had been divided began fighting among themselves. This pattern of activity became permanent: even after the Mane had blended with the indigenous population - a process which was completed in the early 1600s - the various kingdoms in Sierra Leone remained in a fairly continual state of flux and conflict. Rodney believes that a desire to take prisoners to sell as slaves to the Europeans was a major motivation to this fighting, and may even have been a driving force behind the original Mane invasions. Little says that the principal objective in the local wars, at least among the Mende, was plunder, not the acquisition of territory.Abraham cautions that slave trading should not be exaggerated as a cause: the Africans were perfectly capable of finding reasons of their own to fight: territorial and political ambitions were present. It is well to remember that we are speaking of a period of some 350 years, and the motivations may have changed over time.
The wars themselves were not exceptionally deadly. Set-piece battles were rare, and the fortified towns so strong that their capture was seldom attempted. Often the fighting consisted of small ambushes.
In these years the political system was that each large village along with its satellite villages and settlements would be headed by a chief. The chief would have a private army of warriors. Sometimes several chiefs would group themselves into a confederacy, acknowledging one of themselves as king (or high chief). Each paid the king fealty. If one were attacked, the king would come to his aid. The king could adjudicate local disputes.
Despite their many political divisions, the people of the country were united by cultural similarity. One component of this was the Poro, an organisation common to many different kingdoms and even ethnolinguistic groups. The Mende claim to be its originators, and there is nothing to contradict this. Possibly they imported it. The Temne claim to have imported it from the Sherbro or Bulom. The Dutch geographer Olfert Dapper knew of it in the 1600s.It is often described as a "secret society", and this is partly true: its rites are closed to non-members, and what happens in the "Poro bush" is never disclosed. However, its membership is very broad: among the Mende, almost all men, and some women, are initiates. In recent years it has not (as far as we know) had a central organisation: autonomous chapters exist for each chiefdom or village. However, it is said that in pre-Protectorate days there was a "Grand Poro" with cross-chiefdom powers of making war and peace.It is widely agreed that it has a restraining influence on the powers of the chiefs. Headed by a fearsome principal spirit, the Gbeni, it plays a major role in the rite of passage of males from puberety to manhood. It imparts some education. In some areas, it had supervisory powers over trade, and the banking system, which used iron bars as a medium of exchange. It is not the only important society in Sierra Leone: the Sande is a female-only analogue of it; there is also the Humoi which regulates sex, and the Njayei and the Wunde. The Kpa is a healing arts collegium.
The impact of the Mane invasions on the Sapes was obviously considerable, in that they lost their political autonomy. There were other effects as well: Their trade with the interior was interrupted. Thousands were sold as slaves to the Europeans. In industry, a flourishing tradition in fine ivory carving was ended; however, improved ironworking techniques were introduced.
1600-1787
In the 1600s Portuguese imperialism waned and, in Sierra Leone, the most significant European group became the British. By, at latest, 1628, they had a "factory" (their name for a trading post) in the vicinity of Sherbro Island, which is about 50 km South East down the coast from present-day Freetown. One commodity they got was camwood, a hard timber, from which also could be obtained a red dye. It was at that time still easily accessible from the coast. Also, elephants still lived on Sherbro Island. The Portuguese missionary, Baltasar Barreira, left Sierra Leone in 1610. Jesuits, and later in the century, Capuchins, continued the mission. By 1700 it had closed, although priests occasionally still visited.
Map of Bunce Island from 1727

A company called the Royal Adventurers of England Trading into Africa received a charter from Charles II of England in 1663 and subsequently built a fort in the Sherbro and on Tasso Island in the Freetown estuary. They were plundered by the Dutch in 1664, the French in 1704, and pirates in 1719 and 1720. After the Dutch raid, the Tasso Island fort was moved to nearby Bunce Island which was more defensible.
The Europeans made payments, called Cole, for rent, tribute, and trading rights, to the king of an area. At this time the local military advantage was still on the side of the Africans, and there is a report, for instance, from 1714, of a king seizing Company goods in retaliation for a breach of protocol. Local Afro-Portuguese often acted as middlemen, the Europeans advancing them goods and they trading them to the local people, most often for ivory. In 1728 an overly aggressive Company governor united the Africans and Afro-Portuguese in hostility to him; they burnt down the Bunce Island fort and it was not rebuilt until about 1750. The French wrecked it again in 1779.
Map of Sierra Leone from 1732

During the 1600s the Temne ethnolinguistic group was expanding. Around 1600 a Mani still ruled the Loko kingdom (the area North of Port Loko Creek) and another ruled the upper part of the South shore of the Freetown estuary. The North shore of the estuary was under a Bulom king, and the area just east of Freetown on the peninsula was held by a non-Mani with a European name, Dom Phillip de Leon (he may however have been a subordinate to his Mani neighbour). By the mid-1600s this situation had changed: Temne, not Bullom was spoken on the South shore, and ships stopping for water and firewood had to pay customs to the Temne king of Bureh who lived at Bagos town on the point between the Rokel River and Port Loko Creek. (The king may actually have still considered himself a Mani - in fact Temne chiefs to this day are called by Mani-derived titles - but his people were Temne. The Bureh king in place in 1690 was called Bai Tura - "Bai" is a Mani form.)
The Temne had thus expanded in a wedge toward the sea at Freetown, and now separated the Bulom to the North from the Mani and other Mande speakers to the South and East.
In this period there are several reports of women occupying high positions. The king of the South shore used to leave one of his wives to rule when he was absent, and in the Sherbro there were woman chiefs. In the early 1700s a Bulom named Seniora Maria had her own town near Cape Sierra Leone.
During the 1600s, Muslim Fula from the Upper Niger and Senegal rivers moved into an area called Futa Jalon in the mountainous region North of present-day Sierra Leone. They were to have an important impact on the peoples of Sierra Leone because they increased trade and also produced secondary population movements into Sierra Leone. The Muslim Fula at first cohabited peaceably with the Sussa, Yalunka, and non-Muslim Fula already at Futa Jalon, but around 1725 embarked on a war of domination over them. As a result many Susu and Yalunka migrated.
Susu - some already converted to Islam - came South into Sierra Leone, in turn displacing Limba from North-West Sierra Leone and driving them into North-central Sierra Leone where they now are. Some Susu moved as far South as the Temne town of Port Loko, only 60 km upriver from the Atlantic. Eventually a Muslim Susu family called Senko supplanted the town's Temne rulers. Other Susu moved Westward from Futa Jalon, eventually dominating the Baga, Bulom, and Temne North of the Scarcies.
As for the Yalunka in Futa Jalon, they at first accepted Islam, then rejected it and were driven out. They went into North-central Sierra Leone and founded their capital at Falaba in the mountains near the source of the Rokel. It is still an important town, about 20 km South of the Guinea border. Other Yalunka went somewhat farther South and settled amongst the Koranko, Kisi, and Limba.
Besides these groups, who were more-or-less unwilling emigrants, a considerable variety of Muslim adventurers went forth from Futa Jalon. A Fula called Fula Mansa (Mansa = King) became ruler of the Yoni country 100 km East of present-day Freetown. Some of his Temne subjects there fled South to the Banta country between the middle reaches of the Bagu and Jong rivers, where they became known as the Mabanta Temne.
In 1652 the first slaves in North America were brought from Sierra Leone to the Sea Islands off the coast of the southern United States. During the 1700s there was a thriving trade bringing slaves from Sierra Leone to the plantations of South Carolina and Georgia where their rice-farming skills made them particularly valuable.
Britain and British seafarers - including Sir Francis Drake, John Hawkins, Frobisher and Captain Brown - played a major role in the transatlantic trade in captured Africans between 1530 and 1810. Treaty of Utrecht of 1713, which ended the Spanish War of Succession (1701 - 1714), had an additional clause (the Asiento) that granted Britain (among other things) the exclusive rights over the shipment of captured Africans across the Atlantic. Over 10 million captured Africans were shipped to the Caribbean Islands and the Americas and many more died during the raids, the long marches to the coast and on the infamous middle passage due to the inhumane conditions in slave ships. Britain outlawed the slave trade on 29 March 1807 with the Slave Trade Act 1807 and the British Navy operating from Freetown took active measures to stop the Atlantic slave trade.
An 1835 illustration of liberated slaves arriving in Sierra Leone

In 1787 a plan was implemented to settle some of London's "Black Poor" in Sierra Leone in what was called the "Province of Freedom." A number of Black poor and White women arrived off the shore of Sierra Leone on 15 May 1787. They were accompanied by some English tradesmen. This was organised by the St George's Bay Company, composed of British philanthropists who preferred it as a solution to continuing to financially support them in London. Many of the Black poor were Loyalists, enslaved Africans who had been promised their freedom for joining the British Army during the American Revolution, though they also included other African and Asian inhabitants of London. Disease and hostility from the indigenous people nearly eliminated the first group of colonists. Through the intervention of Thomas Peters, the Sierra Leone Company was established to relocate another group of nearly 2,000 Black Loyalists, originally settled in Nova Scotia. Given the most barren land in Nova Scotia, many had died from the harsh winters there. They established a settlement at Freetown in 1792. This settlement was joined by other groups of freed slaves and became one of Britain's first colonies in West Africa.
Originally planned as utopian community by Granville Sharp, the English abolitionist, the directors of the Sierra Leone Company refused to allow the settlers to take freehold of the land. Aware of how Highland Clearances benefited the landlord but not the tenant, the settlers revolted in 1799. The revolt was only put down by the arrival of over 500 Jamaican Maroons, who also arrived via Nova Scotia.
Thousands of slaves were returned to or liberated in Freetown. Most chose to remain in Sierra Leone. These returned Africans were from all areas of Africa. They joined the previous settlers and together became known as Creole or Krio people. Cut off from their homes and traditions by the experience of slavery, they assimilated some aspects of British styles of life and built a flourishing trade on the West African coast. The lingua franca of the colony was Krio, a creole language rooted in eighteenth century African American English, which quickly spread across the region as a common language of trade and Christian proselytizing. British and American abolitionist movements envisioned Freetown as embodying the possibilities of a post-slave trade Africa.
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