[1] Although it rains throughout the year, the rainy season is from late March to early November, with the period from May to August being wettest.

[3] The government of the Congo Free State established a post at Yakoma for collection of ivory and rubber.

It lay opposite the original French capital of Ubangi-Shari (the present–day Central African Republic) at les Abiras.

[4] A traveler who visited the post at Yakoma in 1905 noted the workers were paid, but primary in the form of beads and salt rather than currency.

[5] Sleeping sickness seems to have been introduced to the area through the rise in canoe traffic to provision the colonial posts along the river from Libenge to Yakoma.