The Tanganyikan discontents came into the open in early 1964, when Nyerere was persuaded that when announcing a five-year development plan, scheduled for 12 May 1964, he should also announce some rearrangement of
EACSO. What then happened was that a meeting of the Finance Ministers at Entebbe in February 1964 was without warning presented with an ultimatum.
The combined efforts of these institutions had a centralizing influence, which ensured, for example, that the East African High Commission, established in 1947/8 was transformed in 1961 into the East African Common Services Organization (
EACSO) that in turn laid down the basis of the institutions of the initial East African Community (1967-1977).
The East African Common Services Organization (
EACSO) was established in 1961 to replace the EAHC, which was deemed politically unacceptable, following that Tanganyika had attained independence from Britain in the same year.