Final answer:
George Washington set precedents by leaving office after two terms, appointing Cabinet officials, and being referred to as 'Mr. President'.
Step-by-step explanation:
A precedent set by George Washington was leaving the office after two terms. Washington voluntarily stepped down after serving two terms as the first President of the United States, establishing the tradition of presidential term limits.
Another precedent set by Washington was the appointment of Cabinet officials. He established key departments within the executive branch and appointed individuals to lead them, creating the foundation for the current Cabinet system.
Lastly, Washington was the first to be referred to as 'Mr. President'. He chose this form of address to convey respect and dignity to the office, and it has since become the standard title for the President.
Learn more about George Washington's precedents