Final answer:
The effectiveness of the summary cannot be determined without the actual summary of the story.
Step-by-step explanation:
The question is asking for an evaluation of the effectiveness of a summary of the story 'The Beginning of the Maasai.' However, the provided text does not contain the summary itself, so it is not possible to determine if it is an effective summary. In order to evaluate the summary, it would be necessary to have the actual summary of the story. Without this information, it is not possible to give a definitive answer to the question.