Description: The Smithsonian National Portrait Gallery (NPG) will celebrate its 50th anniversary in 2018. Ahead of next year’s festivities, NPG unveiled an exhibition commemorating its May 1968 opening. The Smithsonian Institution Archives (SIA) provided several pieces for this gallery, including a photo of President Lyndon B. Johnson’s dedication speech on May 3rd. Check out the full
Description: The Smithsonian Institution has long been known for both its original research and its exhibitions. But, it was not until 1980 that the National Museum of Natural History (NMNH) first exhibited an on-going active research project, the world's first indoor living coral reef.[edan-image:id=siris_sic_7411,size=450,center]In the late 1960s, when NMNH paleobiologist Walter H. Adey