This document discusses several major developments in cooking and the food service industry over the 20th century. It describes how the role of the chef has evolved from a domestic servant to a respected artist. Key developments include the modernization of kitchen equipment which has simplified food production, the increased availability of new food products due to refrigeration and global transportation, greater awareness of nutrition and sanitation which has changed food handling practices, and international influences which has exposed chefs and diners to global cuisines. These developments have significantly changed cooking styles and what we eat over the past century.