Why was the Amadas and Barlowe voyage considered successful?

wide-ranging information acquired by Amadas and Barlowe, as well as what they learned from their association with Manteo and Wanchese, gave Raleigh and his associates sufficient encouragement to continue their plans to establish the first English colony in America in 1585.

on the morning of  july 21,  1861, general mcdowell ordered the  unionarmy to attack. it was on this hill that  confederate  colonel thomas jackson and his forces held back theunion  troops.

which statement explains one of the reasons world war 1 was so much more destructive than earlier conflicts