It falls in the first decan of Aquarius (degrees 1 to 10), and is Aquarius's tenth degree. Its decan is ruled by Venus rather than Saturn, which colors the degree with something Aquarius does not supply on its own. The term ruler here is also Venus, so the finer division agrees with the decan rather than adding a separate voice. Aquarius is fixed air, a stubborn commitment to an idea or a group rather than to a single feeling.
Charubel, the pen name of the Welsh astrologer John Thomas, catalogued an image for every degree in 1898. His entry for this one describes a ruin consisting of the remains of an ancient massive wall, with an archway therein. Marc Edmund Jones drew this degree, with the other 359, from a shuffled deck in 1925, working with the clairvoyant Elsie Wheeler in Balboa Park, San Diego. His own book was not published until 1953.
The version most often repeated since, though, is Dane Rudhyar's 1973 restatement in An Astrological Mandala, copyrighted material that this page does not reproduce. None of this is meant as prophecy; it is a way of describing where, precisely, this degree sits inside Aquarius's larger pattern. Element and quality carry through every degree of Aquarius: it is a fixed air sign, and this degree inherits that basic temperament even as the decan and term add their own note.