Aryan Sun-Myths: The Origin of Religions by Sarah Elizabeth Titcomb, was originally published in 1889. The work looks at the central themes of Christianity and their pre-Christian Aryan roots by way of a comparative mythology with Egyptian, Hindu, Celtic, Buddhist, Aztec, and Arabian mythologies, inclduing the recurrent themes and symbols of the Tree of Life, Axis Mundi, Cross, and Virgin born saviour. Titcomb also points out the underlying seasonal agricultural and astronomical cycles in these theological systems. The introduction is provided by Charles Morris, author of The Aryan Race: Its Origins and Its Achievements, which was originally published in 1888.