Within ten years of the Young Pretender's occupation of Holyrood, Edinburgh's town council proposed a plan to relieve the chronic overcrowding of the Royal Mile tenements by constructing a New Town on land to the north of the castle.
Ediburgh was so overcrowded that some people ended up sleeping on the streets. 
mnli hypothesis: Ediburgh was so overcrowded that some people ended up sleeping on the streets.  premise: Within ten years of the Young Pretender's occupation of Holyrood, Edinburgh's town council proposed a plan to relieve the chronic overcrowding of the Royal Mile tenements by constructing a New Town on land to the north of the castle.