Thomas Cole and John James Audubon were two major American artists in the 1830s-1840s. Both immigrated to the US (Audubon in 1803 and Cole in 1819) and learned painting without formal training. They were inspired by the American wilderness and sought to depict its natural beauty through landscape painting and scientific illustrations, respectively. However, they also witnessed and documented the rapid development and destruction of the wilderness during their lifetimes.