Edward Thorndike was an American psychologist born in 1874 who developed a methodology for experimentally studying animal learning and behavior. He is known for major theoretical concepts like connectionism, that learning is incremental rather than insightful, and that all mammals learn in the same manner. Before 1930, Thorndike proposed laws of readiness, exercise, and effect to describe the learning process. After 1930, he revised some of these laws and introduced additional concepts like belongingness and spread of effect. Thorndike believed educational practices should be scientifically studied and improved based on discoveries about learning.