Final answer:
The 1990 court case that caused a surge in accusations based on recovered memories during therapy is the George Franklin trial, which raised serious concerns about the reliability of such therapeutic methods in legal contexts.
Step-by-step explanation:
The 1990 court case resulting in a flood of new victims making accusations was related to memories they had supposedly recovered during therapy and is known as the George Franklin trial. The case was highly influential and controversial due to the use of recovered memory therapy which later came under significant scrutiny and criticism for its reliability and impact on the accused and the legal system.
Criticisms of such trials can trace their intellectual lineage to critiques by figures like Felix Frankfurter, who highlighted how political passion and patriotic sentiment could unjustly influence legal proceedings.