The Vyborg Side was filled with industrial enterprises of different complexity, producing sugar, textiles, timber and later, since the 19th century, many kinds of heavy industry products. There were factories e.g. by Ericsson and the Nobel family. Working and living conditions for workmen were varied, but generally considered harsh, and illegal Socialist propaganda of various political factions successfully spread among workers in the last decades of 19 century and early decades of the 20th. There were strikes, and World War I caused both battle losses and famine in the city. Not surprisingly factory workers supported in 1917 the February revolution that overthrew monarchy and the October Revolution that promised to end private ownership of factories and actually of workers' lives. People's militia was formed on the Vyborg Side to counteract any attempts of counter revolution and maintain public order. These detachments were called Red Guards. Vladimir Lenin before the October Revolution returned from hiding in semi-autonomous Finland to a safe house on the Vyborg Side, from whence on the eve of the revolution he was conducted to the revolutionary headquarters in Smolny by a Finnish bodyguard of his to head the developments.