A historical timeline of Selangor By ssub18 Period: Oct 12, 1948 to Oct 12, 2011 Selangor State Government Oct 31, 1948 Federated Malay States became Federation of Malaya Aug 31, 1957 Independence of Malaya Feb 26, 1959 Constitution of the State of Selangor Sep 16, 1963 Formation of Malaysia Oct 12, 1965 Selangor state flag adopted Oct 12, 1974 Relinquishing of Kuala Lumpur to the Federal Government Oct 12, 1977 Klang is replaced by Shah Alam as the state's capital Jan 12, 1997 Privatisation of water companies in Selangor Selangor Water Woes Jun 20, 2006 Petaling Jaya becomes the second city in Selangor PJ Now a City Mar 10, 2008 Selangor becomes a state under Pakatan Rakyat [Malaysia's political tsunami](htthttp://www.thedailybeast.com/newsweek/2008/03/09/political-tsunami.htmlp://) Feb 17, 2009 Selangor government bids to take over water from private company Syabas Selangor takeover of Water Aug 28, 2009 Cow head march at Selangor State Secretariat [Cow Head Incident](httphttp://news.bbc.co.uk/2/hi/8246272.stm://) Dec 20, 2009 Selangor implements No Plastic Bag Day No Plastic Bag Day Jan 8, 2010 Attacks on Selangor churches Assumption Church attack Dec 29, 2010 Chief Secretary’s appointment of Selangor State Secretary without consultation with Mentri Besar Lim Kit Siang on State Secretary's appointment