Studying past civilizations through their structures and artifacts, including physical remains, artwork, tools and religious objects, in order to understand their history and culture is key to the subject of archeology. Students may specialize in a specific area such as geographic region, time period or type of society.

The PhD is a doctoral degree, specifically called a "doctor of philosophy" degree. This is misleading because PhD holders are not necessarily philosophers (unless they earned their degree in philosophy!). That said, PhD recipients are able to engage in thought experiments, reason about problems, and solve problems in sophisticated ways.

Online or distance learning refers to the use of electronic media and information and communication technologies (ICT) in education. With online learning, one can access education at any time and from any location with an available internet connection.