People commonly label other cultural movements of that period as hippie, however there are differences. For example, hippies were often not directly engaged in politics, as contrasted with "Yippies" (Youth International Party), an activist organization. The Yippies came to national attention during their celebration of the 1968 spring equinox, when some 3,000 of them took over Grand Central Terminal in New York—eventually resulting in 61 arrests. The Yippies, especially their leaders Abbie Hoffman and Jerry Rubin, became notorious for their theatrics, such as trying to levitate the Pentagon at the October 1967 war protest, and such slogans as "Rise up and abandon the creeping meatball!" Their stated intention to protest the 1968 Democratic National Convention in Chicago in August, including nominating their own candidate, "Lyndon Pigasus Pig" (an actual pig), was also widely publicized in the media at this time.