Title: Kievan Rus%27.
Question: What did the Pechenges trade with the Rus?

Title: YouTube.
Question: When did youtube first require the user to have a google account before posting a comment?

Title: YouTube.
Question: An activist in the Arab spring said they were using Twitter to do what?

Title: History of India.
Question:
After a history of raiding groups, what is not remarkable in the history of the subcontinent?