a. Historical Background
In the era of classical Greece there is no such profession solely as a historian. Most of them are now referred to as real historians have such major work as government officials, senators, army officers, imperial treasurer, and usually write their work if it has stopped working. Thus it can be said that they often write down what the experience or what they are doing, especially if their freedom as a writer while still working very actively obstructed or limited. This was especially true during the reign of the Roman emperors. However, some historians are trying to take distance from the authorities in order to gain freedom in writing, an attitude not uncommon to have to pay for it with their lives.