In the early historical period (most of first millennium CE), Kamarupa straddled most of present-day Northeast India, besides Bhutan and Sylhet in Bangladesh. Xuanzang, a travelling Chinese Buddhist monk, visited Kamarupa in the 7th century CE. He described the people as "short in stature and black-looking", whose speech differed a little from mid-India and who were of simple but violent disposition. He wrote that the people in Kamarupa knew of Sichuan, which lay to the kingdom's east beyond a treacherous mountain.