According to archaeologists Oliver Creighton and Robert Higham, "the great country houses of the seventeenth to twentieth centuries were, in a social sense, the castles of their day". Though there was a trend for the elite to move from castles into country houses in the 17th century, castles were not completely useless. In later conflicts, such as the English Civil War (1641–1651), many castles were refortified, although subsequently slighted to prevent them from being used again. Some country residences, which were not meant to be fortified, were given a castle appearance to scare away potential invaders such as adding turrets and using small windows. An example of this is the 16th century Bubaqra Castle in Bubaqra, Malta, which was modified in the 18th century.