[1] The Union of the Peoples of Cameroon (Union des Populations du Cameroun - UPC) leader Ruben Um Nyobé was born in the small village of Song Mpek to the south of Boumnyébel, then in the subdivision of Eséka in the Sanaga-Maritime department.

[2] After the UPC was made illegal on 13 July 1955 by the French government, Ruben Um Nyobé became a guerrilla in the forests near Boumnyébel.

[3] In 1956, Prime Minister André-Marie Mbida visited Boumnyébel, and delivered a famous ultimatum to the rebels.

[4] Um Nyobé was killed by the French army on 13 September 1958 and his body was displayed in front of the office of public works in Boumnyébel.

[6] In June 2011 a radar trap had been set up at Maholè, 100 metres (330 ft) from Boumnyébel, and was catching vehicles travelling at almost 130 kilometres per hour (81 mph) in a section with a speed limit of 70 kilometres per hour (43 mph).