A museum is a permanent building, place, or institution dedicated in the service of society. It is committed to acquire, preserve, conserve, research and interpreting tangible and intangible evidence of humans heritage and its environment. Museums mainly serve the purpose of education, study, and enjoyment through collection and caring of objects of scientific, artistic, or historical importance and displaying it for public viewing through exhibitions. Some museums also impart programs, lectures, tutorials and other such activities for adults, children, and families, as well as those for more specific professions like archeology. Some museums have artifacts that are hard to find as these objects date back as early as the 2nd century.