Final answer:
The chronological structure is the best fit for an informative address about an important historical event.
Step-by-step explanation:
The type of structure that would best fit an informative address about an important historical event is the chronological structure. This structure presents information in the order in which it occurred, allowing the audience to follow the sequence of events. By organizing the speech chronologically, the speaker can provide a clear and logical account of the historical event, building a coherent narrative.
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