The document discusses the history and applications of artificial intelligence (AI) in agriculture. It defines AI as the theory and development of computer systems able to perform tasks normally requiring human intelligence. The timeline of AI highlights important developments from 1950 to present day. The document outlines different types of AI and discusses 20 applications of AI in agriculture, including decision support systems, precision agriculture, robotics, and use of sensors, machine learning and computer vision. It predicts that AI will have a large impact on agriculture by helping 70 million Indian farmers and adding $9 billion to farmer incomes by 2020.