WASHINGTON, DC.- In Light of the Past: Celebrating 25 Years of Photography at the National Gallery of Art, on view in the West Building from May 3 through July 26, 2015, commemorates more than two decades of the Gallery's robust photography program. Some 175 of the collection's most exemplary holdings reveal the evolution of the art of photography, from its birth in 1839 to the late 1970s. In Light of the Past is one of three stellar exhibitions that commemorate the 25th anniversary of the National Gallery of Art's commitment to photography acquisitions, exhibitions, scholarly catalogues, and programs.

"In Light of the Past includes some of the rarest and most compelling photographs ever created," said Earl A. Powell III, director, National Gallery of Art, Washington. "It also honors the generous support of our donors who have enabled us to achieve this new place of prominence for photography at the Gallery."

In 1949, Georgia O'Keeffe and the Alfred Stieglitz Estate donated to the Gallery the unparalleled Key Set of Stieglitz photographs, including more than 1,600 prints by this seminal artist. Yet it was only in the 1980s that the Gallery began to pay more attention to photography when it mounted a series of exhibitions, including Photographs by Alfred Stieglitz (1983), Ansel Adams: Classic Images (1985), and On the Art of Fixing a Shadow: 150 Years of Photography (1989).

In addition to focusing attention on the art of photography, these exhibitions brought the Gallery important donations, including Virginia Adams' gift of the Museum Set of photographs by her late husband, Ansel Adams (1902–1984), and a large group of pictures by the distinguished American photographer Walker Evans (1903–1975), donated by Kent and Marcia Minichiello.

With these gifts in hand, the Trustees decided to begin actively collecting photographs, and in 1990, founded the Department of Photographs, launching an initiative to acquire the finest examples of the art of photography and to mount photography exhibitions of the highest quality, accompanied by scholarly publications and programs. In the years since, the Gallery's collection of photographs has grown to nearly 15,000 works, encompassing the history of the medium from its beginnings in 1839 to the present, and featuring in-depth holdings of the work of many of the masters of the art form. Its program of exhibitions and publications is now considered among the best in the world.

In Light of the Past begins with exceptional 19th-century salted paper prints, daguerreotypes, and albumen prints by acclaimed early practitioners such as William Henry Fox Talbot (1800–1877), Gustave Le Gray (1820–1884), Roger Fenton (1819–1869), Julia Margaret Cameron (1815–1879), Albert Sands Southworth (1811–1894, and Josiah Johnson Hawes (1808–1901). It also displays works by American expeditionary photographers, including William Bell (1830 – 1910) and Carleton E. Watkins (1829–1916).

The exhibition continues with late 19th- and early 20th-century American pictorialist photographs by Alfred Stieglitz (1864–1946), Clarence H. White (1871–1925), Gertrude Käsebier (1852–1934), and Alvin Langdon Coburn (1882–1966), among others, as well as European masters such as Eugène Atget (1857–1927).

The exhibition also examines the international photographic modernism of artists such as Paul Strand (1890–1976), André Kertész (1894–1985), Marianne Brandt (1893–1983), László Moholy-Nagy (1895–1946), and Ilse Bing (1899–1998) before turning to the mid-20th century, where exceptional work by Walker Evans (1903-1975), Robert Frank (b. 1924), Harry Callahan (1912–1999), Irving Penn (1917–2009), Lee Friedlander (b. 1934), and Diane Arbus (1923–1971) will be on view.

The exhibition concludes with pictures from the 1960s and 1970s, showcasing works by photographers such as Robert Adams (b. 1937), Lewis Baltz (1945–2014), and William Eggleston (b. 1939), as well as Mel Bochner (b. 1940) and Sol LeWitt (1928 – 2007), which demonstrate the diverse practices that invigorated photography during these decades.