Meanwhile, Solidarity had been transforming itself from a trade union into a social movement or more specifically, a revolutionary movement. Over the 500 days following the Gdańsk Agreement, 9–10 million workers, intellectuals and students joined it or its suborganizations, such as the Independent Student Union ("Niezależne Zrzeszenie Studentów", created in September 1980), the Independent Farmers' Trade Union ("NSZZ Rolników Indywidualnych "Solidarność"" or Rural Solidarity, created in May 1981) and the Independent Craftsmen's Trade Union. It was the only time in recorded history that a quarter of a country's population (some 80% of the total Polish work force) had voluntarily joined a single organization. ""History has taught us that there is no bread without freedom,"" the Solidarity program stated a year later. ""What we had in mind was not only bread, butter and sausages, but also justice, democracy, truth, legality, human dignity, freedom of convictions, and the repair of the republic."" "Tygodnik Solidarność", a Solidarity-published newspaper, was started in April 1981.