The U.S. Environmental Protection Agency (EPA) was created in 1970, through an executive reorganization plan, as an independent regulatory agency responsible for the implementation of federal laws designed to protect the environment.According to the publication "The Guardian: Origins of the EPA," President Nixon declared his intention to establish the Environmental Protection Agency with Reorganization Plan Number 3, dated July 9, 1970. Reorganization Plan Number 3 can be found in the Congressional Record, Vol 116, H 6523 (91st Congress, 2nd Session).The EPA's mission would include:"The establishment and enforcement of environmental protection standards consistent with national environmental goals... The conduct of research on the adverse effects of pollution and on methods and equipment for controlling it; the gathering of information on pollution; and the use of this information in strengthening environmental protection programs and recommending policy changes... assisting others, through grants, technical assistance and other means, in arresting pollution of the environment... assisting the Council on Environmental Quality in developing and recommending to the President new policies for the protection of the environment."<span>After being cleared through hearings in the Senate and House of Representatives, the EPA came into being on December 2, 1970.</span>
I believe postulates are given or assumed true statements without a proof. And a theorem can be proven. You do this in geometry if I remember correctly.
One of the main ways in which the United States attempted to strengthen its ties and influence with the nations of Latin America was by declaring that further attempts to colonize this area by Europeans would be met with resistance by the US--as embodied in the Monroe Doctrine.