Psychology is the scientific study of behavior and mental processes. Its historical development reflects a gradual shift from philosophical speculation to systematic scientific investigation. The discipline has evolved through the contributions of philosophers, physicians, and scientists who attempted to understand the human mind, emotions, perception, learning, and behavior. Each stage in its development introduced new methods and theories that expanded the scope of psychology. The roots of psychology can be traced to ancient civilizations such as Greece, India, China, and Egypt. Greek philosophers like Socrates, Plato, and Aristotle made significant contributions to the understanding of human nature. Plato believed that knowledge was innate and the mind was separate from the body. Aristotle, on the other hand, argued that knowledge came from experience and emphasized observation of the natural world. These philosophical discussions laid the foundation for later psychological thought. During the Middle Ages, psychological ideas were strongly influenced by religion and theology. Human behavior and mental experiences were often explained in spiritual terms. However, during the Renaissance, interest in scientific inquiry increased, leading scholars to study the human body and mind more objectively. Philosophers such as René Descartes proposed the theory of mind-body dualism, suggesting that the mind and body are distinct but interact with each other. John Locke introduced the concept of the mind as a "tabula rasa" or blank slate, emphasizing the role of experience in shaping knowledge. Psychology emerged as an independent scientific discipline in the late nineteenth century. Wilhelm Wundt is regarded as the father of modern psychology because he established the first psychological laboratory at