industrial relations department's bargaining methods. 1969 - Murray-Hill riot 1970s 1971 – Introduction of paid maternity leave through unemployment insurance 1975 – Grace Hartman is elected as the second president of the Canadian Union of Public Employees, becoming the first woman to lead a major labour union in North America. September 15, 1978 - The Inco Strike of 1978 begins in Sudbury, Ontario. Workers are out on strike for almost nine months, until June 7, 1979. June 1979 – The United Food and Commercial Workers is formed through the merger of the Amalgamated Meat Cutters and the Retail Clerks International Union. 1980s 1985 - The Canadian Auto Workers become independent of their former parent union, the United Auto Workers. This process is later documented in the film Final Offer. 1986 - Six-month-long strike at the Gainers meatpacking plant in Edmonton 1990s 1992 - A bomb at the Giant Mine in the Northwest Territories kills nine replacement workers. Striking mine employee Roger Warren is eventually convicted on nine counts of second-degree murder. 1993 - Local 598 in Sudbury, Ontario, which was the only Mine Mill local in the world not to join the United Steelworkers when the two unions merged in 1967, joins the Canadian Auto Workers. 1998 - Teenagers Jennifer Wiebe and Tessa Lowinger successfully unionize a McDonald's franchise in Squamish, British Columbia. However, the union is decertified in July 1999. 2000s November 22, 2000 - A McDonald's restaurant in Montreal is unionized. The location is closed down on August 31, 2001, with the owner claiming economic pressures due to a rent hike. This is later documented in the film Maxime, McDuff & McDo. 2004 - CN Rail workers strike 2005 - Wal-Mart closes its Saguenay, Quebec store which became the first store of its brand in Canada being unionized. May 29, 2006 - Toronto Transit Commission workers stage a one-day wildcat strike. April 26, 2008 - 2008 Toronto Transit Commission strike September 19, 2008 - A fire destroys the historic Sudbury Steelworkers Hall in Sudbury, Ontario. December 10, 2008 - OC Transpo drivers and mechanics strike June 22, 2009 - 2009 City of Toronto inside and outside workers strike July 13, 2009 - Workers at Vale's operations in Sudbury embark on a yearlong strike over contract concessions. 2010s July 5, 2010 - A tentative resolution of the Vale strike in Sudbury is announced. September 11, 2012 - Ontario Premier