Most of England`s criminal laws have been codified, not least because it allows for the accuracy and security of prosecutions. However, the major areas of the common law, such as contract law and the law of wrongdoing, remain largely intact. Over the past 80 years, there have been statutes that address immediate problems, such as the Reform (Frustrated Treaties) Act of 1943 (which was subject to empty war contracts) and the Contracts (Rights of Third Parties) Act 1999, which changed the doctrine of privity. However, no progress has been made on the adoption of Harvey McGregor`s Treaty Code (1993), although the Law Commission, in collaboration with the Scots Law Commission, has asked it to put forward a proposal for the comprehensive codification and unification of contract law in England and Scotland. Similarly, the codification in the law of unlawful action was at best fragmentary, a rare example of progress being the Act of Reform of the Law (complacent negligence) of 1945. A contract is an agreement between two or more parties that creates reciprocal obligations that can be imposed by law. The elements of the contract are mutual consent, offer and acceptance, consideration and legal purpose.  English J. Sir Mackenzie Chalmers is known as the author of the Bills of Exchange Act 1882, the Property Act in 1893 and the Marine Insurance Act 1906. The Sale of Goods Act was repealed and re-orchestrated by the Property Act of 1979 in a way that revealed how solid the 1893 original had been. [Note 2] The Marine Insurance Act (slightly amended) was a remarkable success, adopted literally in many common law legal systems. The first permanent system of codified laws could be found in imperial China,[Note 1], with the compilation of the tang code in 624 AD. This served as the basis for the Chinese penal code, which was eventually replaced by the code of major issues, which was abolished in 1912 after the Xinhai Revolution and the creation of the Republic of China.
The new laws of the Republic of China were inspired by the German codification work, the Civil Code. A very influential example in Europe was the French Napoleonic code of 1804. Since each act of congress may contain laws on a large number of subjects, many legal acts or parts of legislation are also reorganized and published in a technical codification updated by the Office of the Law Revision Counsel. The official codification of federal laws is called the U.S. Code. In general, only “public laws” are codified. The U.S. code is subdivided into “titles” (based on global themes) with numbers 1 to 54.  For example, Title 18 contains many federal crime laws. Title 26 is the internal income code.  Contract law governs contractual obligations defined by an agreement between private parties in the United States. Treaty law varies from state to state; In some areas, there is contract law at the federal level, such as.B.
contracts under federal claims law. In addition to religious laws such as Halakha, important codifications were developed in the ancient Roman Empire, with compilations of the Lex Duodecim Tabularum and much later the Corpus Juris Civilis. But these codified laws were the exception rather than the rule, for in antiquity most Roman laws remained uncodified. The common law has been codified in many legal systems and in many legal areas: for example, criminal codes in many legal systems, including the California Civil Code and the New York State Consolidated Laws. In addition, parts of certain acts of Congress, such as the validity date provisions for amendments to codified statutes, are not codified at all.