Who discovered body language?

Body language, as a concept, wasn't "discovered" by a single individual; rather, it has been studied and understood over time by various researchers and psychologists. Pioneers like Charles Darwin explored nonverbal communication in the context of evolution, while scholars such as Edward T. Hall and Paul Ekman significantly advanced the study of body language in the 20th century. Their work helped to highlight the importance of nonverbal cues in communication and interpersonal interactions.