Which landmark case set a precedent or standard for identifying "a class of fundamental personal rights"

The correct answer is Griswold v. Connecticut (1965).

In Griswold v. Connecticut, the Supreme Court "inferred" a right to privacy in several of the amendments to the Constitution and since then the Court has found privacy rights to be a class of fundamental personal rights.

there has only been 12 presidents. the 12th president is/was moon jae-in