Final answer:
Judicial review was established as a novel concept by the Marbury v. Madison case in 1803, which granted the Supreme Court the power to declare acts of Congress unconstitutional.
Step-by-step explanation:
The concept of judicial review was indeed a novel idea at the time of the Marbury v. Madison case in 1803. The case established the principle that the Supreme Court could declare an act of Congress unconstitutional, which was not an explicit power granted by the Constitution. Chief Justice John Marshall's ruling effectively strengthened the judiciary by asserting this power to review and possibly nullify the actions of the legislative and executive branches. The case is a foundational principle for the operation of the U.S. government within a system of checks and balances.
Therefore, the statement that judicial review was a novel concept at the time of Marbury v. Madison is (a) True.