History Of The Battery
Prior to the rise of electrical generators and electrical power grids from around the end of the 19th century, batteries were the main source of electricity. Successive improvements in battery technology permitted the rise of major electrical advances, from early scientific studies to the rise of telegraphs and telephones, leading eventually to portable computers, mobile phones, electric cars and multitudes of other electrical devices.
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“In the history of the United States, there is no continuity at all. You can cut through it anywhere and nothing on this side of the cut has anything to do with anything on the other side.”
—Henry Brooks Adams (1838–1918)