The history of the city of Heze is rooted in deep antiquity. The first settlements in this territory were connected with the era of the Zhou Dynasty, when the State of Cao existed here (11th century BC — 487 BC). Throughout the centuries, the region played a notable role in the history of China. An important historical name for these places became Caozhou (曹州), as the area was named during the Sui Dynasty. This name is still used in the titles of cultural sites, for example, the famous "Caozhou" Peony Garden. The modern name Heze (菏泽) is an abbreviation derived from the names of He Mountain (Heshan) and the Leize body of water.
The formation and development of the city were determined by several key factors. Firstly, its geographical position on the fertile plain in the lower reaches of the Yellow River promoted the development of agriculture. Secondly, the region repeatedly found itself at the centre of important political events. For instance, it was here, in the Dingtao area, that Liu Bang proclaimed himself emperor and founder of the great Han Dynasty. Throughout many dynasties, including the Ming and Qing, Caozhou was a significant administrative centre governing vast territories, which facilitated the development of trade and crafts. The discovery of a sunken Yuan Dynasty ship with well-preserved porcelain testifies to the developed river trade.
Since ancient times, Heze has been known for its cultural and economic distinctiveness. The city rightfully bears the title of the "Peony Capital of China", with a history of cultivation here spanning over 1,400 years. Peony cultivation reached its peak during the Ming and Qing eras, transforming into an important part of the local economy and culture. Furthermore, the region is closely connected with classical Chinese literature — Yuncheng County, part of modern Heze, is considered the homeland of many heroes from the famous novel "Water Margin".