The whole of this melancholy affair was transacted in almost 20 minutes. On my asking the soldiers why they fired without orders, they said they heard the word fire and supposed it came from me. This might be the case as many of the mob called out fire, fire, but I assured the men that I gave no such order; that my words were, don't fire, stop your firing. In short, it was scarcely possible for the soldiers to know who said fire, or don't fire, or stop your firing. Part A
From Captain Preston’s point of view, what happened during the Boston Massacre?

Part B
What was happening at this time in history?