Question: What sit-ins were located in Greensboro, NC?

<P0-S0> The Greensboro sit-ins were a series of nonviolent protests in Greensboro, North Carolina, in 1960, which led to the Woolworth department store chain removing its policy of racial segregation in the Southern United States. <P0-S1>  While not the first sit-in of the Civil Rights Movement, the Greensboro sit-ins were an instrumental action, and also the most well-known sit-ins of the Civil Rights Movement. <P0-S2>  These sit-ins led to increased national sentiment at a crucial period in US history. <P0-S3>  The primary event took place at the Greensboro, North Carolina, Woolworth store, now the International Civil Rights Center and Museum. <SEP> <P1-S0> Downtown Greensboro Historic District is a national historic district located at Greensboro, Guilford County, North Carolina. <P1-S1>  The district encompasses 96 contributing buildings in the central business district of Greensboro. <P1-S2>  The commercial buildings were built between about 1885 and the 1930s in a variety of popular architectural styles including Italianate and Art Deco. <P1-S3>  Located in the district is the separately listed Jefferson Standard Building. <P1-S4>  Other notable buildings include the Vanstory Building (c. 1885), Kress Building (1929), Woolworth's (c. 1929), Efrid's Department Store (c. 1930), Montgomery Ward (1936), the Carolina Theatre (1927), Center Theatre (1948), the former Belk Building (1939), Ellis Stone/Thalhimer's Department (1949-1950), and the former American Exchange National Bank Building (1920). <P1-S5>  The Woolworth's store is notable as the site of the Greensboro sit-ins of 1960. <SEP> <P2-S0> The International Civil Rights Center & Museum (ICRCM) is located in Greensboro, North Carolina, United States. <P2-S1>  Its building formerly housed the Woolworth's, the site of a non-violent protest in the civil rights movement. <P2-S2>  Four students from North Carolina Agricultural and Technical State University (NC A&T) started the Greensboro sit-ins at a "whites only" lunch counter on February 1, 1960. <P2-S3>  The four students were Franklin McCain, Joseph McNeil, Ezell Blair, Jr. (now Jibreel Khazan), and David Richmond. <P2-S4>  The next day there were twenty students. <P2-S5>  The aim of the museum's founders is to ensure that history remembers the actions of the A&T Four, those who joined them in the daily Woolworth's sit-ins, and others around the country who took part in [sit-in]]s and in the civil rights movement. <P2-S6>  The Museum is currently supported by earned admissions and Museum Store revenues. <P2-S7>  The project also receives donations from private donors as a means of continuing its operations. <P2-S8>  The museum was founded in 1993 and officially opened its doors just fifty years to the day after the sit-in movements in Greensboro NC. <SEP> <P3-S0> Franklin Eugene McCain (January 3, 1941 – January 9, 2014) was an American civil rights activist and member of the Greensboro Four. <P3-S1>  McCain, along with fellow North Carolina A&T State University students Ezell Blair, Jr., Joseph McNeil and David Richmond, staged a sit-in protest at the Woolworth lunch counter in Greensboro, North Carolina, on February 1, 1960. <P3-S2>  Their actions were credited with launching the Greensboro sit-ins which successfully brought about the reversal of Woolworth's policy of racial segregation in their southern stores, and increased national sentiment to the fight of African-Americans in the south.