The crofting population were already relying on a potato diet and when the crop failed during the potato famine in the late 1830s and again in the late 1840s emigration seemed the only alternative to starvation
There was a poor standard of living in the highlands as blackhouses were shared with animals, they often had no chimneys and roofs leaked. Also, houses often lacked basic amenities such as toilets
There were few employment opportunities for ambitious young people as there were a limited number of professional posts for the well-educated resulting in young wealthy highlanders emigrating
Effects of the Agricultural Revolution with new technologies and fewer jobs in farming led to mass emigration as there were fewer opportunities for many on the land due to the introduction of machinery and new farming techniques