The keyword phrase "september 11th events in history" functions grammatically as a noun phrase. The core word, which serves as the main point or grammatical head, is the plural noun "events". The entire phrase collectively names a specific category of historical occurrences.
In this construction, the noun "events" is being modified by the other components of the phrase. "September 11th" acts as an adjectival modifier, specifying the particular date of the events. The prepositional phrase "in history" also functions adjectivally, further defining the context of these events. Both modifiers serve to narrow the focus from the general concept of "events" to a specific, identifiable set of occurrences tied to a date and a domain of study.
Understanding that "events" is the main noun is crucial for the article's development. It establishes that the central subject matter is not the date itself, but the specific actions, incidents, and happenings that occurred on that date. Therefore, the article's content must be structured around describing, analyzing, and contextualizing these tangible occurrences, treating "September 11th" and "history" as the defining characteristics of the subject matter.
