The Upper Paleolithic (or Upper Palaeolithic, and also in some contexts Late Stone Age) is the third and last subdivision of the Paleolithic or Old Stone Age as it is understood in Europe, Africa and Asia. Very broadly it dates to between 40,000 and 10,000 years ago, roughly coinciding with the appearance of "high" culture (behavioral modernity) and before the advent of agriculture. The terms "Late Stone Age" and "Upper Paleolithic" refer to the same periods. For historical reasons, "Stone Age" usually refers to the period in Africa, whereas "Upper Paleolithic" is generally used when referring to the period in Europe. In 19th century archaeology, the Upper Paleolithic was also known as the "Reindeer Age".