I want to know the answer to the following question:
What had the Kushans conquered much of by the time of Kanishka
All the background I'm provided with is that "The Kushan Empire expanded out of what is now Afghanistan into the northwest of the subcontinent under the leadership of their first emperor, Kujula Kadphises, about the middle of the 1st century CE.". Is that enough to answer the question?
Answer: no