Question: When was the founder of a hedge fund in 1996 notable for short selling Lehman born?

Context paragraphs:
Greenlight Capital: Greenlight Capital is a hedge fund founded in 1996 by David Einhorn.  Greenlight invests primarily in publicly traded North American corporate debt offerings and equities.  Greenlight is most notable for its short selling of Lehman stock prior to Lehman Brothers' collapse in 2008 and the $11 million fine they received in January 2012 for insider trading in the UK.  Einhorn remains the fund's manager.

Rengan Rajaratnam: Rajarengan "Rengan" Rajaratnam (born 1971) is a hedge fund manager.  He is the founder of hedge fund Sedna Capital and the younger brother of convicted hedge fund founder Raj Rajaratnam.  He was arrested for securities fraud in March 2013.  His trial in New York City began in June, 2014 but he was found not guilty by the jury in July 2014.

Fortress Investment Group: Fortress Investment Group is an investment management firm based in New York City.  When, Fortress launched on the NYSE on February 9, 2007 with Goldman Sachs and Lehman Brothers underwriting the IPO, it was the first large private equity firm in the United States to be traded publicly.  As of June 30, 2016, the firm managed approximately $70.2 billion alternative assets in private equity, liquid hedge funds and credit funds.  In 2014, Fortress Investment Group was named "Hedge Fund Manager of the Year" by "Institutional Investor" and "Management Firm of the Year" by "HFMWeek".  Fortress has previously been recognized by "Institutional Investor" as “Discretionary Macro-Focused Hedge Fund of the Year” for 2012, and “Credit-Focused Fund of the Year” for both 2011 and 2010.

Ole Andreas Halvorsen: Ole Andreas Halvorsen (born 1961) is a Norwegian-born investor, hedge fund manager, and philanthropist.  He is the CEO and a co-founder of the Connecticut-based hedge fund, Viking Global Investors.  Viking had $16.7 billion under management as of April 2012.  Halvorsen has consistently ranked among the top earning hedge fund managers, placing 11th in Forbes' 2012 rankings and 9th in 2015, according to Institutional Investor's Alpha.

David Einhorn (hedge fund manager): David M. Einhorn (born November 20, 1968) is an American investor, hedge fund manager, and philanthropist.  He is the founder and president of Greenlight Capital, a "long-short value-oriented hedge fund."

List of hedge funds: Here are the ten largest hedge funds in the world ranked by assets under management as of mid 2016.  Only assets in private funds following hedge fund strategies are counted.  Some of these managers also manage public funds and offer non-hedge fund strategies.  For example, BlackRock is the largest investment manager in the world with $5.7 trillion assets under management in all types of funds and AQR Capital Management is the largest provider of public mutual funds following hedge fund strategies with $23 billion in public hedge fund assets under management in addition to the $63 billion of private assets listed below, and an additional $90 billion in traditional investment funds.

Steven Drobny: Steven Edward Drobny (born April 29, 1972) is an American hedge fund advisor and published author.  He is the founder of Drobny Capital, a consulting and investment advisory business focused on fundamental discretionary global macro and commodity hedge fund strategies.  Drobny is the author of "The Invisible Hands: Top Hedge Funds on Bubbles, Crashes and Rethinking Real Money (John Wiley & Sons, 2010)" and "Inside the House of Money: Top Hedge Fund Traders on Profiting in the Global Markets (John Wiley & Sons, 2006)"

Hedge fund replication: Hedge fund replication is the collective name given to a number of different methods that attempt to replicate hedge fund returns.  The hedge fund industry has boomed over recent years and various studies by investment banks as well as academic papers have shown that hedge funds may be nearing an alpha generating capacity constraint.  This means hedge funds can no longer produce alpha in aggregate.  Replication has been claimed to remove the illiquidity, transparency and fraud risk associated with direct investment in hedge funds.  With the belief that the pursuit of alpha is a zero-sum game, more investors are looking to simply add "Hedge Fund Beta" to their portfolio.  These early investors have been rewarded as the replicators outperformed their direct investment cousins in 2008 due to their greater liquidity and lower use of leverage.

Arvind Raghunathan: Arvind Raghunathan (born October 24, 1963) is a Hedge Fund Manager.  He is the founder and CEO of Roc Capital Management LP (the largest Hedge Fund launch of 2009).  On February 25, 2009, it was announced that Raghunathan and his associates would be leaving Deutsche Bank to set up the independent quant trading hedge fund.  It was rumored in late July 2013 that the main fund of Roc Capital Management would be liquidated after losses.

Long-Term Capital Management: Long-Term Capital Management L.P. (LTCM) was a hedge fund management firm based in Greenwich, Connecticut that used absolute-return trading strategies combined with high financial leverage.  The firm's master hedge fund, Long-Term Capital Portfolio L.P., collapsed in the late 1990s, leading to an agreement on September 23, 1998, among 16 financial institutions—which included Bankers Trust, Barclays, Bear Stearns, Chase Manhattan Bank, Credit Agricole, Credit Suisse First Boston, Deutsche Bank, Goldman Sachs, JP Morgan, Lehman Brothers, Merrill Lynch, Morgan Stanley, Paribas, Salomon Smith Barney, Societe Generale, and UBS—for a $3.6 billion recapitalization (bailout) under the supervision of the Federal Reserve.

Supporting paragraphs: Greenlight Capital David Einhorn (hedge fund manager)
Answer: 1968