Year 104 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Marius and Fimbria (or, less frequently, year 650 Ab urbe condita). The denomination 104 BC for this year has been used since the early medieval period, when the Anno Dominicalendar era became the prevalent method in Europe for naming years.
Emperor Wu of Han maintains large armies of occupation and burdens the Chinese economy. Landowners expanding their holdings, but farmers are forced to borrow at usurious rates and paying 50 percent of their crops as rent. Homelessness and banditry has increased, and agricultural productivity has declined.