For example, the Seventh Amendment to the Constitution provides the right to a jury trial in any civil case at common law in a federal court in which the amount in controversy is "twenty dollars," and it is obvious that the purpose behind the twenty-dollar minimum was to limit jury trials to cases in which substantial sums were involved. But although twenty dollars was a substantial amount of money in 1791, when the Seventh Amendment was adopted, it is hardly substantial anymore.

Unknown, Frederick Schauer - Thinkin…, loc. 42