General psychology is the study of basic principles, problems and methods underlying the science of psychology, including human development, emotions, motivation, learning, senses, perception, thinking, memory, intelligence and information processing. The history of psychology began with ancient Greeks and Egyptians and developed into an independent scientific discipline in the late 19th century in Germany and the US. Major contributors included Wilhelm Wundt, who founded the first psychology laboratory; William James, the American father of pragmatism; and Ivan Pavlov, who developed classical conditioning. Psychology aims to understand behavior and mental processes through perspectives like behaviorism, cognitive science and more to gain insights applicable to various fields.