Carla Hayden is also the first librarian with a limited term.
Carla Hayden, newly sworn-in librarian of Congress, hugs House Speaker Paul D. Ryan as Chief Justice John G. Roberts Jr. signs the oath he administered after a ceremony in the Great Hall of the Thomas Jefferson Building on Wednesday. (Tom Williams/CQ Roll Call)
Carla Hayden officially made history at midday on Wednesday, becoming the first woman and first African-American librarian of Congress.
Hayden was sworn in as the 14th head of the 216-year-old institution at a time when the library is transitioning into the digital age. In recent years, its technology and modernization efforts have come under criticism from Congress and the Government Accountability Office.