The ISDV began a Dutch-language publication, "Het Vrije Woord" ("The Free Word", edited by Adolf Baars), in October 1915. It did not demand independence when the ISDV was formed. At this point, the association had about 100 members; only three were Indonesian, and it rapidly took a radically anti-capitalist direction. When Sneevliet moved ISDV's headquarters from Surabaya to Semarang, the ISDV began attracting many natives from like-minded religious, nationalist and other activist movements which had been growing throughout the Dutch Indies since 1900. The ISDV under Sneevliet became increasingly incompatible with the SDAP leadership in the Netherlands, who distanced themselves from the association and began to equate them with Volksraad (People's Council). A reformist faction of the ISDV broke away and formed the Indies Social Democratic Party in 1917. The ISDV began "Soeara Merdeka" ("The Voice of Freedom"), its first Indonesian-language publication, that year.