- Begins extensive electrical experiments
- Franklin writes "The Plain Truth," a pamphlet arguing for better military preparedness in PA. In the pamphlet is the first political cartoon published in America.
- Peter Collinson of London sends Franklin an electric tube. "For my own part, I never was before engaged in any study that so totally engrossed my attention and my time as this has lately done.
- Becomes a soldier in the PA militia after turning down a commission as a Colonel citing military inexperience.
- Franklin presents his vision for education in a pamphlet titled "Publick Academy of Philadelphia." His initiatives and vision would lead to the founding of the University of Pennsylvania.
- Letters on electricity published in London by Peter Collinson
- Conducts kite experiment
- Received Copley Medal of the royal Society of London for research in electricity. Deputy Postmaster General of N.A.
- Wrote a plan for a union of the colonies for security and defense.
- Received honorary degrees from Harvard and Yale.
- Appointed joint Deputy Postmaster General of North America.
- Proposes plan of colonial union at Albany Congress
- In England as agent for Pennsylvania Assembly, Massachusetts, Georgia, New Jersey
- Receives honorary degree of Doctor of Laws from the University of St. Andrews, Scotland
- Mapped Postal routes in the colonies. Invents glass armonica
- Examined in House of Commons in support of repeal of the Stamp Act
- Named Colonial Agent for Georgia.
- Named Colonial Agent for New Jersey.
- Elected Colonial Agent for Massachusetts.
- Dressed down before London's Privy Council by Solicitor General Wedderburn for leaking letters in the "Hutchinson Affair."
- Deborah Read, his wife of 44 years, dies in Philadelphia
- Elected as a Pennsylvania delegate of Pennsylvania to Second Continental Congress; serves as chairman of Pennsylvania Committee of Safety
- Elected Postmaster General of the Colonies
- Meets Madame Brillon, an amour.
- Appointed to negotiate peace treaty with England.
- Madame Helvetius rejects Franklin's offer of marriage.
- Elected President of Pennsylvania Executive Council
- Invents the "long arm," an instrument for taking down books from a shelf