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1820 in science
Overview of the events of 1820 in science / From Wikipedia, the free encyclopedia
The year 1820 in science and technology involved some significant events, listed below.
![Greenough's Geological map of England & Wales published by the Geological Society 1819](http://upload.wikimedia.org/wikipedia/commons/thumb/4/45/Geological_Map_of_England_and_Wales_by_Greenough%2C_1820.jpg/640px-Geological_Map_of_England_and_Wales_by_Greenough%2C_1820.jpg)
The year 1820 in science and technology involved some significant events, listed below.