Map of Alexander's Exploration

Prior to Alexander the Great's exploration and conquering of the lands east of the Ganges, these areas where relatively unknown and unexplored. Tales of Alexanders heroism and adventures in these regions sparked interest in others to learn more about these areas. As people visited them cultures blended. 

"The Military Campaigns of Alexander the Great." In Classical Greek Civilization, 800-323 B.C.E, edited by John T. Kirby, 35-36. Vol. 6 of World Eras. Detroit, MI: Gale, 2001. Gale Virtual Reference Library (accessed May 1, 2019). http://link.galegroup.com.ndcproxy.mnpals.net/apps/doc/CX3035100020/GVRL?u=mnanorman&sid=GVRL&xid=56c8efb2. (mostly from the last paragraph)