During the 19th century the British Empire was encroaching from northern India into the Himalayas and Afghanistan and the Russian Empire of the tsars was expanding south into Central Asia. Each power became suspicious of intent in Tibet. But Tibet attracted the attention of many explorers. In 1840, Sándor Kőrösi Csoma arrived in Darjeeling, hoping that he would be able to trace the origin of the Magyar ethnic group, but died before he was able to enter Tibet.