Law of the United States
In 1952, the Institute started the Restatement, Second — updates of the original Restatements with new analyses and concepts with and expanded authorities. (A Restatement on Foreign Relations Law of the United States was also undertaken.) The second Restatement of the Law was undertaken to reflect changes and developments in the law, as well as to implement a new format that provided more expansive commentary and more meaningful illustrative material, affording fuller statements of the reasons for the positions taken. For example, the volumes generally included a set of Reporter's Notes that detailed the reasons on which the principles and rules stated were based and the authorities that supported them. And for the convenience of legal researchers, the second series of volumes also provided cross-references to the key numbers of the West Publishing Company's Digest System and to the "American Law Reports" annotations of the Lawyers Cooperative Publishing Company. In addition, appendix volumes included digest paragraphs of decisions of state appellate courts and federal courts citing the Restatements on each subject.