Humanities

Throughout the world, deaf people have developed visual language. The language used by deaf people is a blend of signs brought from France early in the 19th century. Some signs were already in use in various countries. With no formal sign language in existence here at that time, home, local, and French signs blended together to become a new sign language called American Sign Language, now considered to be one of the most refined and complete sign systems in the world

Theory of Knowledge (ToK) is a high school epistemology course taken by all International Baccalaureate Diploma Program students. This course discusses how the student is able to know something. The student is described as an "actor of knowledge" who attempts to find knowledge, where knowledge, as defined by Plato, is "justified true belief".