 The legal profession in England and the United States continued to hold Magna Carta in high esteem; they were instrumental in forming the Magna Carta Society in 1922 to protect the meadows at Runnymede from development in the 1920s, and in 1957, the American Bar Association erected the Magna Carta Memorial at Runnymede.The prominent lawyer Lord Denning described Magna Carta in 1956 as "the greatest constitutional document of all times – the foundation of the freedom of the individual against the arbitrary authority of the despot".Radicals such as Sir Francis Burdett believed that Magna Carta could not be repealed, but in the 19th century clauses which were obsolete or had been superseded began to be repealed.