April

April 1 — Wangari Maathai, Kenyan Conservationist, Born (1940)

April 2 — Maria Sibylla Merian, German Entomologist, Born (1647)

April 3 — Jane Goodall, Chimpanzee Researcher, Born (1934)

April 4 — “The Good Life” Begins Airing (1975)

April 5 — Civilian Conservation Corps (CCC) Created (1933)

April 6 — American Museum of Natural History Founded (1869)

April 7 — World Health Day

April 8 — A Tribute to the Endangered Species Act

April 9 — Jim Fowler, “Wild Kingdom” Co-host, Born (1932)

April 10 — Arbor Day First Celebrated (1872)

April 11 — Ian Redmond, Primatologist, Born (1954)

April 12 — Arches National Monument Created (1929)

April 13 — First Elephant Arrives in U.S. (1796)

April 14 — Black Sunday Dust Storm (1935)

April 15 — Nikolaas Tinbergen, Animal Behaviorist, Born (1907)

April 16 — Ling-Ling and Hsing-Hsing Arrive in U.S. (1972)

April 17 — Ford Mustang Introduced (1964)

April 18 — Natural History Museum, London, Opened (1881)

April 19 — E. Lucy Braun, Plant Ecologist, Born (1889)

April 20 — Gro Harlem Brundtland, Godmother of Sustainable Development, Born (1939)

April 21 — John Muir, Father of American Conservation, Born (1838)

April 22 — The First Earth Day (1970)

April 23 — World Book Day

April 24 — Tomitaro Makino, Father of Japanese Botany, Born (1862)

April 25 — Theodore Roosevelt National Park Established (1947)

April 26 — John James Audubon Born (1785)

April 27 — Soil Conservation Service Created (1935)

April 28 — Chernobyl Nuclear Accident Announced (1986)

April 29 — Dancing with Nature’s Stars

April 30 — First State Hunting License Fee Enacted (1864)