How was Abraham's Lincoln's speech from Gettysberg address structured?

It was very influential to the people

Abraham Lincoln’s speech, the Gettysburg Address, is considered as the most influential speech in the history of the United States. In the era where leaders commonly delivered a long speech for about two hours or more, Lincoln speech provided a different path of an effective speech: less than three minutes and not more that 300 words.

it is simply because he used a lot of parallel structures-repetition of grammatical pattern to convey similar ideas. Let see closer how this speech is constructed in term of parallel structures.