The Romantic Period exists in a state of flux between revolution and conservatism. Leading into this period, there was a population boom which created a populous with more workers and consumers. This allowed the Industrial Revolution to flourish in Britain. Industrialization caused changes in class structures. While lineage was the most respectful way to acquire wealth, one can began to see the emergence of the nouveau riche. Imperial expansion prospered during this period especially in India, and questions over the slave-fueled economy began to be raised. One of the key themes resulting from this time period of rapid progress was an individual’s mind in relation to the natural world–something the urban environments of major cities were asking its inhabitants to leave behind.