Final answer:
Benjamin Franklin used eloquence, his statesman reputation, and printed materials to establish and preserve freedom. His 'Join or Die' slogan encouraged colonial unity, and his input in the Declaration of Independence and the Constitutional Convention was pivotal in securing the First Amendment rights.
Step-by-step explanation:
Benjamin Franklin utilized several tools to establish and preserve freedom in his speeches during the convention. His primary tools included eloquent rhetoric, his reputation as a statesman and diplomat, and the strategic use of printed materials, such as pamphlets and almanacs. Franklin leveraged the power of the written word to advocate for unity and liberty among the colonies, particularly with his 'Join or Die' slogan, which was inspired by the Iroquois Confederacy's principles of union. His advocacy for colonial unity, his role in drafting the Declaration of Independence, and his contributions to the Constitutional Convention were all essential in shaping the foundation for freedoms protected under the First Amendment. Franklin's legacy includes his fight against tyranny through humor, negotiation, and the spread of Enlightenment ideals.