As
As is the subordinating conjunction. It transitions between the two main ideas in the sentence. The first main idea is the squad and speaker stretching. The second idea is the pep band playing. Subordinating conjunctions often tell you time. In this case, as tells you that the stretching is happening at the same time the band starts to play.
Answer: May 25, 1787 it took place at Independence Hall in philidalphia
Hope this helps :)
They appear as the topic sentences of your paragraphs. I hope I have helped
Peace desperation and instinct
