"We Shall Overcome" is a gospel song which became a protest song and a key anthem of the American civil rights movement. The song is most commonly attributed as being lyrically descended from "I'll Overcome Some Day", a hymn by Charles Albert Tindley that was first published in 1901. The modern version of the song was first said to have been sung by tobacco workers led by Lucille Simmons during the 1945–1946 Charleston Cigar Factory strike in Charleston, South Carolina. In 1947, the song was published under the title "We Will Overcome" in an edition of the People's Songs Bulletin (a publication of People's Songs, an organization of which Pete Seeger was the director), as a contribution of and with an introduction by Zilphia Horton, then-music director of the Highlander Folk School of Monteagle, Tennessee (an adult education school that trained union organizers). Horton said she had learned the song from Simmons, and she considered it to be her favorite song. According to Horton, "one of the stanzas of the original hymn was 'we will overcome'. ... It sort of stops them cold silent.'" She taught it to many others, including Pete Seeger, who included it in his repertoire, as did many other activist singers, such as Frank Hamilton and Joe Glazer, who recorded it in 1950. The song became associated with the civil rights movement from 1959, when Guy Carawan stepped in with his and Seeger's version as song leader at Highlander, which was then focused on nonviolent civil rights activism. It quickly became the movement's unofficial anthem. Seeger and other famous folksingers in the early 1960s, such as Joan Baez, sang the song at rallies, folk festivals, and concerts in the North and helped make it widely known. Since its rise to prominence, the song, and songs based on it, have been used in a variety of protests worldwide. The U.S. copyright of the People's Songs Bulletin issue which contained "We Will Overcome" expired in 1976, but The Richmond Organization asserted a copyright on the "We Shall Overcome" lyrics, registered in 1960. In 2017, in response to a lawsuit against TRO over allegations of false copyright claims, a U.S. judge issued an opinion that the registered work was insufficiently different from the "We Will Overcome" lyrics that had fallen into the public domain because of non-renewal. In January 2018, the company agreed to a settlement under which it