<human>:  What was the name of the first major sit-in at a lunch counter in the United States?
<bot>: The first sit-in at a lunch counter in the United States was the Greensboro sit-in. It happened on February 1st, 1960. It was a peaceful protest in which black college students sat down at a segregated lunch counter in a Woolworth’s department store in Greensboro, North Carolina. The protest was organized by four African American college students, who had been inspired by the Montgomery bus boycott in 1955.