Final answer:
George Washington did not set the precedent for presidents joining the Supreme Court after their term, being the first president to have a pet dog, and retiring after two terms.
Step-by-step explanation:
Out of the given options, the precedents that George Washington did not set are:
- Presidents join Supreme Court after term: This is not a precedent set by George Washington. Although some former presidents have been nominated for the Supreme Court, Washington did not set this precedent.
- First president to have a pet dog: While it is true that George Washington owned many dogs, he was not the first president to have a pet dog. That title goes to Thomas Jefferson, who had a pet dog named Buzzy.
- Retire after Two Terms: George Washington did not retire after two terms. He served as president for two terms and voluntarily decided not to seek a third term, setting a precedent for future presidents. However, the two-term limit did not become a constitutional amendment until later.
Learn more about George Washington's precedents