Although the ability to perform magic lasted probably from some of the earliest human-like species, a lack of brain power meant that most bearers simply could not harness the magic for their own use, and those that could often caused explosive and sometimes dangerous results. Because of this, no official name was ever given to this early era, which lasted for most of the stone age. However, towards the end (and mainly by chance) of the age, bearers realised they had a limited ability to foresee the future. Divination, or 'fortune telling' grew in popularity as a small business and by 5000 BCE had several thousand active businesses. For this reason, the age became known as the Divination Era.