January 1, 1872
Spencer Baird is named head of U.S. National Museum on January 1, 1872. Smithsonian Secretary Joseph Henry issues a memo stating "the Assistant Secretary shall have special charge of the collections of the Institution, and of the National Museum, and shall direct the operations connected with them subject to the approval of the Secretary." Baird would succeed Henry as Secretary of the Smithsonian after Henry's death in 1878.