apr 21, 1973 - Mobutu goings crazy ( literally)
Mobutu changes the country's name to Zaire (and changes his own name to Mobutu Sese Seko Kuku Ngbendu Wa Za Banga, which is usually translated as "the all-powerful warrior who, because of his endurance and inflexible will to win, will go from conquest to conquest leaving fire in his wake" or also" the rooster that watches over all hens"). Foreign interests are nationalized.
Added to timeline:
Colonization of the Congo