Conversation so far:
What kind of influences from the outside world is the article pertaining to?
British colonial policy makers in 1951 removed all Maasai from the Serengeti National Park and relegate them to areas in and around the Ngorongoro Conservation Area (NCA)

Question: Has this been a positive thing for them or negative?
Self-contained rewrite: Has being relegated to the Ngorongoro Conservation Area (NCA) been a positive thing for the Maasai people or negative?