This article introduces the auditing function in historical perspective as a solution to principal-agent problems that emerged as commercial partnerships grew and as corporations arose later. The early history of modern accounting coincides with the rise of international business in Europe and public accounting emerges after the rise of the corporate form of business. The treatment herein focuses first on the history of mainly private late-medieval accounting to assess the profitability of a privately owned company and then on the more recent role of accounting in assuring the accuracy of the financial reports of publicly traded corporations. The article highlights the economic value and the social function of private financial accounting a...