Codenamed Oyneg Shabbat (Joy of the Sabbath), a team of 'researchers' wrote and collected documents detailing life and death inside the ghetto. The secret project was conducted inside the Warsaw Ghetto during World War Two. Led by the historian, Emanuel Ringelblum, the archive included surveys on schooling, smuggling, the life of the streets, the bitter jokes, the price of bread. Members of the project gathered posters, songs, newspapers, pamphlets and even tram tickets that together convey the essence of the Ghetto.