[1] An 1897 map of the Congo Free State showed Ubangi District as a long strip along the northwest border of the colony, on the left bank of the Ubangi River, which defined the border down to its confluence with the Congo River.

[3] Reports of missionaries show that working conditions imposed on the populations by the rubber companies was harsh and almost inhuman.

Royaux reached Banzyville territory in December 1898, but before starting rubber production had to recruit as many men as possible to fight the Batetela in Uele, who had been in rebellion since 1897.

In a series of atrocities, police detachments killed many villagers who had revolted, or had failed to meet their quotas.

Those who remained were vulnerable to sickness and were impoverished since the men did not have time to work the fields, and the soldiers freely looted livestock from the villages.

[5] As of 1926 the province included the districts of Ubangi, Bangala, Lulonga, Équateur and Lac Léopold II.