In what year was the english colony of jamestown founded? 
 a. 1499 
 b. 1578 
 c. 1607 
 d. 1724 user: what was a direct result of jamestown's success? 
 a. the return of half of the colonists to england 
 b. a decrease in indentured servants in the colony 
 c. the importation of african slaves to the english colonies 
 d. a sudden and marked decline in the colony's population