The United States detonates the first hydrogen bomb in 1952 based on the research of Edward Teller, Manhattan Project physicist. The development of hydrogen weapons sparks yet another race between the U. S. and Russia, the race to develop unmanned r...
Theodore Roosevelt is involved with Gifford Pinchot and Carl Schurz in conservation efforts as early as the 1890s. As the first director of National Forest Service, Pinchot establishes a legacy of government involvement in wilderness areas primarily...