Question: In what year was the Chief Justice who swore in Sonia Sotomayor born?

Context paragraphs:
Sonia Sotomayor Learning Academies: Sonia M. Sotomayor Learning Academies is a complex of high schools and one middle school choice in Los Angeles, California.  It is a part of the Los Angeles Unified School District.  Sotomayor is made up of five individual schools.  The complex includes the Los Angeles River School (LARS), the School of History and Dramatic Arts (SoHDA), The studio school (middle school or junior high), Early College Academy of Leaders and Scholars (eCALS), and Tennenbaum Tech school (ATAMS).  It is named after Sonia Sotomayor.

Judiciary of the Bahamas: The basis of the Bahamian Law and legal system lies within the English Common Law tradition.  Justices of the Supreme Court, Registrars and Magistrates are all appointed by The Governor-General acting on the advice of the Judicial and Legal Service Commission, which is composed of five individuals who are headed by the Chief Justice as their chairman.  The Chief Justice and the Justices of the Court of Appeal, including the President, are appointed by the Governor-General on the recommendation of the Prime Minister after consultation with the Leader of the Opposition.  Once appointed, the salaries and other terms of appointment of the Chief Justice, Justices of Appeal and Justices of the Supreme Court cannot be altered to their disadvantage.  Justices of the Supreme Court can serve until the age of 65 years and, where agreed among the judge, the Prime Minister and the Leader of the Opposition, may serve until the age of 67.  Justices of Appeal can serve until the age of 68 years and, where agreed among the judge, the Prime Minister and the Leader of the Opposition, may serve until the age of 70 years.  The law of The Bahamas makes provisions for the appointment of 12 Justices to the Bench of the Supreme Court, inclusive of the Chief Justice, and for five Justices of the Court of Appeal, inclusive of the President.  The Chief Justice, as Head of the Judiciary, is an ex officio member of the Court of Appeal, but only sits at the invitation of the President.

Sotomayor Houses: The Justice Sonia Sotomayor Houses and Community Center is a housing project in Soundview, The Bronx, New York City.  Formerly known as the Bronxdale Houses, the project was renamed in honor of Supreme Court Justice Sonia Sotomayor in June 2010.  The complex was originally opened in January 1955.  The 28-building complex includes close to 1,500 apartments that house about 3,500 residents.

Sonia Sotomayor Supreme Court nomination: On May 26, 2009, President Barack Obama announced his selection of Judge Sonia Sotomayor for Associate Justice of the Supreme Court of the United States, to replace retiring Justice David Souter.  Sotomayor's nomination was submitted to the United States Senate on June 1, 2009, when the 111th Congress reconvened after its Memorial Day recess.  Sotomayor was confirmed by the U.S. Senate on August 6, 2009 by a 68–31 vote and was commissioned by President Obama the same day.  She was sworn in by Chief Justice John Roberts on August 8, 2009.

John Roberts: John Glover Roberts Jr. (born January 27, 1955) is the 17th and current Chief Justice of the United States.  He took his seat on September 29, 2005, having been nominated by President George W. Bush after the death of chief justice William Rehnquist.  He has been described as having a conservative judicial philosophy in his jurisprudence.

Life Technologies Corp. v. Promega Corp.: Life Technologies Corp. v. Promega Corp., 580 U.S. ___ (2017), was a case in which the United States Supreme Court clarified the application of the Patent Act of 1952 to the sale of components of patented inventions in foreign markets.  In an opinion written by Associate Justice Sonia Sotomayor, the Court held that the sale of a "single component" in a foreign market "does not constitute a substantial portion of the components that can give rise to liability under [the Patent Act of 1952]."  Justice Samuel Alito wrote an opinion concurring in part and concurring in the judgment, in which he was joined Justice Clarence Thomas.  Chief Justice John Roberts took no part in the decision of the case.

Hugh Denis Macrossan: Hugh Denis Macrossan (20 February 1881 – 23 June 1940) was a politician and judge in Queensland, a State of Australia.  He was elected as a member of the Queensland Parliament, and was later to become a judge and also the Chief Justice of Queensland.  He was the son of a prominent Queensland politician, and he was elected as a member of parliament.  He served as a judge from 1926, until his appointment as chief justice in 1940 and his death later that year.  He is unique in Queensland history as the shortest serving chief justice, serving only one month, and one of only two chief justice to have a brother and nephew served as chief justice.

Ruth Bader Ginsburg: Ruth Bader Ginsburg (born Joan Ruth Bader; March 15, 1933) is an Associate Justice of the Supreme Court of the United States.  Ginsburg was appointed by President Bill Clinton and took the oath of office on August 10, 1993.  She is the second female justice to be confirmed to the Court (after Sandra Day O'Connor), and one of four female justices to be confirmed (with Sonia Sotomayor and Elena Kagan, who are still serving).  Following Justice O'Connor's retirement, and prior to Justice Sotomayor joining the Court, Ginsburg was the only female justice on the Supreme Court.  During that time, Ginsburg became more forceful with her dissents, noted by legal observers and in popular culture.  She is generally viewed as belonging to the liberal wing of the Court.  Notable majority opinions Ginsburg has authored include "United States v. Virginia, Olmstead v. L.C.," and "Friends of the Earth Inc. v. Laidlaw Environmental Services, Inc."

Barack Obama Supreme Court candidates: President Barack Obama made two successful appointments to the Supreme Court of the United States.  The first was Judge Sonia Sotomayor to fill the vacancy created by the retirement of Justice David H. Souter.  Sotomayor was confirmed by the United States Senate on August 6, 2009, by a vote of 68–31.  The second appointment was that of Solicitor General Elena Kagan to replace the retired John Paul Stevens.  Kagan was confirmed by the United States Senate on August 5, 2010, by a vote of 63–37.

Lewis v. Clarke: Lewis v. Clarke, 581 U.S. ___ (2017), is a case in which the Supreme Court of the United States ruled 8-0 that tribal sovereign immunity does not apply in a suit against a tribal employee in his individual capacity, and an immunity provision cannot extend tribal sovereign immunity to cases in which it would otherwise not apply.  Justice Sonia Sotomayor delivered the majority opinion.  Justice Clarence Thomas and Justice Ruth Bader Ginsburg each wrote concurring opinions that both said that tribal sovereign immunity does not apply in suits arising from commercial activity off of tribal territory.  Justice Neil Gorsuch was not involved in the discussion or decision of this case.

Supporting paragraphs: Sonia Sotomayor Supreme Court nomination John Roberts
Answer: 1955