The Ladder was the first nationally distributed lesbian publication in the United States. It was published monthly from 1956 to 1970, and once every other month in 1971 and 1972. It was the primary publication and method of communication for the Daughters of Bilitis, the first lesbian organization in the US. It was supported by ONE, Inc. and the Mattachine Society, with whom the DOB retained friendly relations. The name of the magazine was derived from the artwork on first cover, simple line drawings showing figures moving towards a ladder that disappeared into the clouds.