What was the difference between the first 3 crusades and the 4th

bibliography and citations to credit the sources hope this you if not my deepest of apologize ^w^

1) the andrew carniage's purchase and renovation of skibo castle have been very good and auspicious for the local people of dornoch firth, scotland because this is a turistic attraction for many people who would want to know the castle, the local people would take advantage about this.

2) yes, it could.