History
History (from Greek ἱστορία, historia, meaning "inquiry, knowledge acquired by investigation") is the study of the past as it is described in written documents. Events occurring before written record are considered prehistory. It is an umbrella term that relates to past events as well as the memory, discovery, collection, organization, presentation, and interpretation of information about these events. Scholars who write about history are called historians.
Economics
To have peace and not war, the drift toward a war economy, as facilitated by the moves and the demands of the sophisticated conservatives, must be stopped; to have peace without slump, the tactics and policies of the practical right must be overcome. The political and economic power of both must be broken. The power of these giants of main drift is both economically and politically anchored; both unions and an independent labor party are needed to struggle effective.
C. Wright Mills, The New Men of Power (1948).