Knowledge Information about the past may be obtained from artifacts, fossils, legends, myths, art, history books. Oral history has been an important means of transmitting information ever since the dawn of humanity. Our knowledge or assumptions about the past changes as new information is found. Time may be measured using a linear scale.
Events occur within a context of time.
They may occur within a context of events happening simultaneously. Optional Time may be measured using a cyclical scale. Although the events may be different, they occur in a cyclical pattern. Knowledge Much of what is recorded in history books about pre-historic peoples and events is based on interpretations of artifacts and oral history. An historical publication is generally written from one perspective, so does not necessarily tell the whole story.