The history of human settlement in the Indian state of Rajasthan dates back 5000 years to the Indus Valley Civilization. Parts of Rajasthan were part of this ancient civilization and archaeological sites have uncovered evidence of settlements during that time period. Rajasthan was long known as Gurjaratra, meaning the country protected or ruled by the Gurjars, and it was famous for its Rajput warriors. Over centuries, various kingdoms and empires, including the Mughals, ruled parts of Rajasthan. In the early 19th century, the Rajput kingdoms signed treaties with the British, accepting British authority but retaining local autonomy. Rajasthan has a rich cultural heritage seen in its forts,