The text book says: "Use illustrations with which your audience can identify. Consider making your audience members part of the scenario in a hypothetical illustration; make the similarity between the two things compared in a figurative analogy apparent to your audience"
In general there are some more pieces of advice on speeches like reconsider your thoughts or procedures anytime in the speech arrangement process, as you search out and take in more about your audience; be audience focused to lessen speaker anxiety; be delicate and adjust to the variety of your crowd; consider your audience's interests and desires as you select the point for your speech; remember your audience' knowledge, premiums, and desires as you select supporting material for your speech.
The Magna Carta was written to protect the rights of the barons and eventually, over time the basic rights of English citizens. This limited king John's and future kings rights.