University of Wisconsin Law School Law In Action

Their principle was that no person should be able to usurp all powers of the state, in contrast to the absolutist theory of Thomas Hobbes’ Leviathan. Sun Yat-sen’s Five Power Constitution for the Republic of China took the separation of powers further by having two additional branches of government—a Control Yuan for auditing oversight and an Examination Yuan to manage the employment of public officials. Civil law is the legal system used in most countries around the world today. In civil law the sources recognised as authoritative are, primarily, legislation—especially codifications in constitutions or statutes passed by government—and custom. Codifications date back millennia, with one early example being the Babylonian Codex Hammurabi. Modern civil law systems essentially derive from legal codes issued by Byzantine Emperor Justinian I in the 6th century, which were rediscovered by 11th century Italy.

• The small Greek city-state,