Australia’s contract law is an amalgam of common law rules, equitable principles, and statute law. Its genesis lay in centuries of development of these three branches of English law. Principles of modern contract law had their roots in the rise of English maritime law during the sixteenth century. In 1788, England established a penal colony at Sydney Cove, seeding the colony of New South Wales. At that moment, all existing English contract law simply flowed into this ‘new’ land as intellectual baggage. Slowly Anglo Australia’s legal and legislative framework evolved from a patchwork of distinct English colonies into a commonwealth of Federal, State, and Territory Governments. The gloss of contract law took on an increasingly antipodean sheen. This resultant ‘system’ of law is a complex relationship between common law, equity, and Federal, State, and Territory legislation. Throughout this chapter we shall use the term ‘general law’ to mean the principles and rules of common law and equity.