Question: What is the nationality of UFOlogist who is credited with being among the first to claim contact with Nordic aliens in the mid 1950s?
Sentence (from "Albert Muwalo"): He entered politics in the mid 1950s through involvement in a hospital worker's trade union and membership of the Nyasaland African Congress, where his activities led to his detention without trial during the 1959 State of Emergency in Nyasaland.
Relevant evidence: No