I want to know the answer to the following question:
When did the Samanid Empire rule the land?
All the background I'm provided with is that "The Samanid Empire, 819 to 999, restored Persian control of the region and enlarged the cities of Samarkand and Bukhara (both cities are today part of Uzbekistan) which became the cultural centers of Iran and the region was known as Khorasan.". Is that enough to answer the question?
Answer: yes