Layers and layers of primarily felsic or intermediate-composition magma -- magma that is relatively rich in silica, sodium, aluminum, and potassium. These crystallize to form â¦ granitic rocks. These are the classic shapes of volcano that every school kid knows, known as stratovolcanoes or composite volcanoes.
The Battle of Bunker Hill took place on June 17, 1775, just a few months after the start of the American Revolutionary War. Boston was being besieged by thousands of American militia.
Bunker Hill was the only major battle of the Revolution, and one of the few in American history, to be fought before an audience: In Chelsea and along the North Shore and the shore of the Back Bay, farmers, tradesmen, women, and children turned out by the thousands to watch the battle.