The document outlines the evolution of marketing philosophies from the 1940s to present. It began with a production orientation philosophy focused on high output and lower costs. This shifted to a sales oriented philosophy in the 1940s-1950s emphasizing promotion and selling to increase sales. In the 1950s-1970s, the focus transitioned to a customer oriented marketing concept centered around understanding customer needs. Most recently beginning in the 1970s, the philosophy has become societal/socially oriented, taking a holistic view that considers all stakeholders in society.