Dalton's Atomic Theory Today, John Dalton is one of the most well known scientists from the 1800's. In addition to proposing an accurate three-part atomic theory, he also discovered colour blindness and made many important observations about the characteristics of weather. Less than twenty years before the establishment of Dalton's theory, Lavoisier focused on making careful quantitative measurements, which allowed him to determine the composition of compounds with amazing accuracy. By 1799 enough data had been …
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…on the element. John Dalton was one of the earlier scientists to focus on the understanding of matter. The atomic theory that he established is still a very important part of chemistry today, and essential to our understanding of the atom. Works Cited 1. Bender, Hal (http://dl.clackamas.cc.or.us/ch104-04/dalton's.htm), Established in 1998, Updated in 2002, Clackamas Community College Accessed Oct. 19, 2003 2. Random House Webster's Dictionary of Scientists, Random House Inc., New York, 1997