the right to strike and organise independent unions. Solidarity With the signing of the Gdańsk Agreement on August 31, delegates from MKS – representing 3500 separate enterprises and 3 million workers, intellectuals and students – met in Gdańsk. The Inter-Enterprise Strike Committee, which had become a national federation of unions now officially became Poland's first independent trade union since World War II: Solidarity (Solidarność). Some historians claim that within weeks Solidarity's membership included almost 80 percent of Poland's working population, while more conservative estimates claim membership peaked at 50 percent. References Crampton, R.J. Eastern Europe in the Twentieth Century - and After. Routledge: New York 1997, 2nd Ed. Modzelewski, Wojciech. "Non-Violence and the Strike Movements in Poland." Journal of Peace Research, No. 2, Vol. XIX, 1982. Pg. 107-116 Goodwyn, Lawrence. Breaking the Barrier: The Rise of Solidarity in Poland. Oxford University Press: New York, 1991 Strajkowy Biuletyn Informacyiny Solidarność, No. 2, August 24, 1980 (In Polish) External links http://files.osa.ceu.hu/holdings/300/8/3/text/45-4-393.shtml http://www.socialistworker.org/2006-1/570/570_08_Poland.shtml 1980 in Poland Labor disputes in Poland Solidarity (Polish trade union)