In addition to losing their effectiveness as defensive structures with advances in technology, as civil strife within the country declined, so did the necessity of such structures.
japanese castles defended themselves by building higher walls so attackers couldnt attack.
1981
Because the cannon was invented therefore blew castles up :)
Because he had built strong secure castles and he had enough of them around the contry and he was happy with their design which was a pointed tower castle.
because they where to old and there was no longer any materials to build them hope this helps
English castles have gun/bow and arrow slits
The problem with building castles out of stone is that it would take to long to build.
Because Chuck Norris Started in the movie business
Castle building stopped when they were no longer able to be defended. In the 15 century, artillery such as cannon balls and mortar were able to break through the stone walls.
G
hieght
"Japanese castles 1540-1640" (2003) by Stephen Turnbull is a good one, but your taste may lie in European castles.