1959: Steel plant reaches peak employment of 30,920 after major expansion launched in 1957

2001: Bethlehem Steel files for Chapter 11 bankruptcy protection, seeks to reorganize

2003: Financier Wilbur Ross founds International Steel Group and buys Bethlehem in $1.5 billion deal, creating nation's largest steel producer

2005: India-born billionaire Lakshmi N. Mittal merges his growing steel empire with ISG and forms Mittal Steel Co. NV, the largest steelmaker in the world

2006: Mittal announces a hostile bid for rival Arcelor SA in January, a $33 billion acquisition that would create a global giant

2006: The Department of Justice files suit in August to block the sale for antitrust reasons unless Mittal sells Arcelor's Canadian company, Dofasco Inc. But that sale is blocked by a Dutch trust that controls it. Mittal later offers to sell a Weirton, W.Va., facility instead.

2007: The Justice Department tells Mittal to sell Sparrows Point to maintain competition in the tin-plated steel market in the United States

2008: Russian steelmaker OAO Severstal completes $810 million acquisition of Sparrows Point with plans to invest significantly in the plant and rev up production.

2010: Severstal idles main part of Sparrows Point and temporarily lays off nearly 1,000 workers because of weak economy and drop in demand for steel

2011: Severstal announces it is selling Sparrows Point and two other mills to Renco Group

2012: Renco puts Sparrows Point up for sale and then announces it will close the mill in June, laying off 1,975 workers

Source: The Baltimore Sun archives

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