Also, while I'm at it:
Africa in the late 19th Century is dominated by expansionist powers - and in the regions of the Guinea, Nubia, and the Congo, this is very clear.
With the division of French colonies between Britain and Portugal, the British Republic found itself the dominant power in the Guinea. All the British colonies in the region were therefore united as the Presidency of the Guinea, and the official policy there for the past twenty years has been one of expansion: the British Guinea must join together all of its territories; once that is done, expansion must continue - in the early 1800s, the British Republic had rapidly industrialized over the course of 15 years, which among other things caused British agriculture to collapse, so the colonies were forced to pick up the slack. And that requires land. So far, the British Guinea's main strategy for expansion has been to turn indigenous nations against each other: Waalo is an obstacle to uniting the British coastline? Give guns to Jolof and Futa Toro and let them distract Waalo. This policy has destabilized most of the Guinea, although some states, like the Sokoto Caliphate, were able to use the chaos as an opportunity to expand. To the east, the Bornu Empire has experienced a resurgence - not against the Sokoto Caliphate, but as British guns were traded by African powers, they proved useful in securing certain states' borders.
Crossing over into the region of Nubia, Wadai has also done well for itself in recent years, and has formed an alliance with Rumbek that is making Darfur nervous. However, the bigger worry for the Sultanate of Rumbek is Ethiopia - the Christian empire has focused on capturing formerly Ottoman territories in the Horn of Africa for now, but they're still building up their armies and their Muslim neighbours are nervous. The Sultanate of Rumbek is one such neighbour - the United Somalian Emirates are another, having joined together and expanded west to combat Ethiopian expansion. In southern Nubia, the dominant power is the Sultanate of Zanzibar, which has now decided to bring all of the African Great Lakes under its control - so far, the only states which have managed to hold back Zanzibar's advance are Buganda, Lualaba, and Maasai Turkana.
To the west again, in the Congo Region, the Kingdom of Kongo has centralized power over the years while Portugal expanded along their borders. Now the concern is that Portugal will want to join together Gabon and Andongo by annexing Kongo - a very well-founded concern, since that is exactly what Portugal intends to do. Portugal also has eyes on the Kingdom of Lunda, since conquering them would make it that much easier to join Andongo and Mozambique together - but for now, Portuguese armies gather on the Kongolese borders while Mozambique and Zanzibar both inch westward.
There are still gaps in the map - blank areas, where there's no state large enough to warrant putting on the map - but those gaps are going to be filled in sooner or later.
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I'm at university now, and I had enough time to get this done, but updates are still probably going to be sporadic so I can spend more time on my studies. That's also why this was shorter than previous posts might have been. That said, thoughts?