Amazon rubber boom the expansion of Iquitos in Peru. The rubber boom occurred largely between 1879 and 1912. There was heightened rubber production and associated activities from 1942 to 1945 during the Second World War. Natural rubber is an elastomer, also known as tree gum, India rubber, and "caoutchouc," which comes from the rubber tree in tropical regions. Christopher Columbus was the one of the first Europeans to bring news of this odd substance back to Europe, but he was not the only one to report it. Around 1736, a French astronomer recalled how Amerindians used rubber to waterproof shoes and cloaks. He
Substance Abuse and Mental Health Services Administration Substance Abuse and Mental Health Services Administration The Substance Abuse and Mental Health Services Administration (SAMHSA; pronounced ) is a branch of the U.S. Department of Health and Human Services. It is charged with improving the quality and availability of treatment and rehabilitative services in order to reduce illness, death, disability, and the cost to society resulting from substance abuse and mental illnesses. The Administrator of SAMHSA reports directly to the Secretary of the U.S. Department of Health and Human Services. SAMHSA's headquarters building is located in Rockville, Maryland. SAMHSA was established in 1992 by Congress as part of a