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The history of bottle recycling in the United States has been characterized by four distinct stages. In the first stage, during the late 18th century and early 19th century, most bottles were reused or returned. [ 1] When bottles were mass-produced, people started throwing them out, which led to the introduction of bottle deposits. [ 2]
The history of water supply and sanitation is one of a logistical challenge to provide clean water and sanitation systems since the dawn of civilization. Where water resources, infrastructure or sanitation systems were insufficient, diseases spread and people fell sick or died prematurely. Astronaut Jack Lousma taking a shower in space, 1974.
Conservatismin the United States. This timeline of modern American conservatism lists important events, developments and occurrences that have affected conservatism in the United States. With the decline of the conservative wing of the Democratic Party after 1960, the movement is most closely associated with the Republican Party (GOP).
By 1945 there were 4.7 million women in clerical positions - this was an 89% increase from women with this occupation prior to World War II. [8] In addition, there were 4.5 million women working as factory operatives - this was a 112% increase since before the war. [8] The aviation industry saw the highest increase in female workers during the war.
The history of the United States from 1945 to 1964 was a time of high economic growth and general prosperity. It was also a time of confrontation as the capitalist United States and its allies politically opposed the Soviet Union and other communist states; the Cold War had begun. African Americans united and organized, and a triumph of the ...
A refrigerator, commonly fridge, is a commercial and home appliance consisting of a thermally insulated compartment and a heat pump (mechanical, electronic or chemical) that transfers heat from its inside to its external environment so that its inside is cooled to a temperature below the room temperature. [ 1]
For most of the 20th century, any form of wildland fire, whether it was naturally caused or otherwise, was quickly suppressed for fear of uncontrollable and destructive conflagrations such as the Peshtigo Fire in 1871 and the Great Fire of 1910. In the 1960s, policies governing wildfire suppression changed due to ecological studies that ...
Social class is an important theme for historians of the United States for decades. The subject touches on many other elements of American history such as that of changing U.S. education, with greater education attainment leading to expanding household incomes for many social groups.