The answer is oral.
These were passed down through stories made by wise men or elders of a
village or tribe from generation to generation.
It was probably a strict process as each successor knew the history of
his clan for he was a source of knowledge to those around him.
Is one of the most famous pharaohs of ancient Egypt, and he known for abandoning traditional Egyptian polytheism and introducing worship centered on the Aten, which is sometimes described as monolatristic, henotheistic, or even quasi-monotheistic.
The Watergate break-in started when a group of men, known as the "plumbers," broke into the Democratic headquarters. They were arrested for this break-in.
Shortly after this two reporters from the Washington Post (Woodward and Bernstein) found that the current US president, Richard Nixon, might have been involved in ordering this break-in. Their confidential source provided details on how Nixon was involved.
Nixon denied these claims. However, a full scale investigation was launched. During this investigation, the court ordered Nixon to hand over recorded conversations from his office in the White House. He refused, was brought to court, and the Supreme Court ruled that he must turn over the recorded conversations.
These tapes showed Nixon's guilty, causing him to resign shortly after the court case.
A federal judge is not required to have a law degree, so it depends on the type of judge you are talking about
