Final answer:
The Mongol Empire used paper money and a postal-station system for merchants, which were not present in Europe at the time. Mongolia's standardized monetary and trade systems, along with state-supported merchant travel, set it apart from contemporary European practices.
Step-by-step explanation:
The technological innovations that were present in the Mongol Empire but not in Europe during the same historical period include paper money and the postal-station system used by merchants. The Mongols standardized weights, measurements, and money under the leadership of Möngke Khan, who in 1253 established a department that issued paper money, facilitating trade and taxation across the vast Mongol territories. The Mongols' postal-station system, or örtöö network, provided a network of relay stations that supported the movement of people, goods, and information, enhancing trade and communication within the empire.
While Europe did see advancements in shipbuilding, such as the Viking longships, and had its own monetary systems, it did not have the equivalent of the Mongolian paper money or an extensive postal-station network during the height of the Mongol Empire. Moreover, European merchants did not enjoy the level of state support and protection offered to those traveling within the Mongol Empire.