FTP, name this Semitic people that invaded Egypt in the 18th-century BC.
Their major defeat came at the hands of Seqenere III, though their capital survived for another 70 years.  The only detailed account of this people comes from Josephus, who used Manetho as his source.  Their consolidation of power began with the establishment of Avaris and the introduction of such items as the compound bow and horse-drawn chariot.  With a name meaning "Shepherd Kings," they revered the god Seth and ruled for roughly 200 years.  FTP, name this Semitic people that invaded Egypt in the 18th-century BC.
Their major defeat came at the hands of Seqenere III, though their capital survived for another 70 years.  
Hyksos