Moving northwards from Harappa and Moenjodaro, come remains of another city that thrived between 518 BC to 600 AD. Around the present day Taxila and a little over 20 miles north of Islamabad, lie the remains of the an ancient city whose actual name varies from scripture to scripture and from one language to another. "Tashasila" as it was called in Sanskrit gives some idea of the meaning of this name. Sila in Sanskrit means rock or stone . The legend says that the Buddha gave his head in charity to a man at this place . The Chinese called it "Chu-cha-shi-lo". The difficulty of Chinese phonetics with the sila and sira has led to this day to have names around Taxila such as Sirkap, Sirsukh and Margalla. Whatever its actual name. it was the most flourishing of all the cities between the Indus and Jhelum Rivers. Darius I formed it part of Achaemenid Empire of Persia. In 326 BC Alexander the Great and his armies encountered the charging elephants at battle against Hin