The period of clipper ships lasted from the early 1840s to the early 1890s, and over time features such as the hull evolved from wooden to composite. At the 'crest of the clipper wave' year of 1852, there were 200 clippers rounding Cape Horn. The age of clippers ended when they were phased out in favor of more modern Iron-hulled sailing ships, which eventually gave way to steamships. In the late 20th century, ships based on the 19th century designs of historical ships began to be built. These are used today as training ships and to promote tourism rather than for cargo or trade. The following entries are organized by their year of launch and alphabetically within each year.