The history of Kievan Rus' is a complex and fascinating one, with the state playing a significant role in the development of Eastern Europe and the broader region. The origins of Kievan Rus' can be traced back to the late 9th century, when the Varangians (Vikings) established themselves in the region. The Varangians were a group of Scandinavian warriors and traders who had been active in Eastern Europe for several centuries. They established the city of Kyiv (also spelled Kiev) as their capital, and began to expand their control over the surrounding area.