Answer:
Castles were typically built over the course of several generations because they were so expensive and time-consuming to build. King Edward I changed that by using new methods and materials, which allowed his castles to be built relatively quickly.
Who Was King Edward I?
King Edward I was one of the most famous medieval kings in English history. He was born in 1239 and ruled England from 1272 until his death in 1307. He is best known for his military campaigns against the Scots, Welsh and French, and for his role in the famous conflict between the papacy and King Philip IV of France, known as the Battle of the Clans. Edward I was also a skilled legislator, and helped to codify English law. He was nicknamed "Longshanks" because of his tall stature.