Law
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were developed by professional jurists, and were highly sophisticated. Over the centuries between the rise and decline of the Roman Empire, law was adapted to cope with the changing social situations, and underwent major codification during Justinian I. Although it declined in significance during the Dark Ages, Roman law was rediscovered around the 11th century when mediæval legal scholars began to research Roman codes and adapt their concepts. In mediæval England, the King's judges developed a body of precedent, which later became the common law. A Europe-wide Lex Mercatoria was formed so that merchants could trade with common standards of practice; rather than with the many splintered facets of local laws. The Lex Mercatoria, a precursor to modern commercial law, emphasised the freedom of contract and alienability of property. As nationalism grew in the 18th and 19th centuries, Lex Mercatoria was incorporated into countries' local law under new civil codes. The French Napoleonic Code and the German became the most influential. In contrast to
English common law, which consists of enormous tomes of case law, codes in small books are easy to export and easy for judges to apply. However, today there are signs that civil and common law are converging. EU law is codified in treaties, but develops through the precedent laid down by the European Court of Justice. Ancient India and China represent distinct traditions of law, and have historically had independent schools of legal theory and practice. The Arthashastra, probably compiled around 100 AD (although it contains older material), and the Manusmriti (c. 100–300 AD) were foundational treatises in India, and comprise texts considered authoritative legal guidance. Manu's central philosophy was tolerance and Pluralism, and was cited across Southeast Asia. This Hindu tradition, along with Islamic law, was supplanted by the common law when India became part of the British Empire. Malaysia, Brunei, Singapore and Hong Kong also adopted the common law. The eastern Asia legal tradition reflects a unique blend of secular and religious influences. Japan was the first country to begin modernising its legal system along western lines, by importing bits of the French, but mostly the German Civil Code. This partly reflected Germany's status as a rising power in the late 19th century. Similarly, traditional Chinese law gave way to westernisation towards the final years of the Ch'ing dynasty in the form of six private law codes based mainly on the Japanese model of German law. Today Taiwanese law retains the closest affinity to the codifications from that period, because of the split between Chiang Kai-shek's nationalists,