1807 - David Alter was born in Westmoreland County, Pennsylvania on the 3rd of December.
1836 - He invented the electric telegraph.
1837 - He settled in Freeport, Pennsylvania. He made a small electric motor.
1840 - He invented electric buggy, the forerunner of the automobile.
1841-1842 - He obtained medical schooling at the Cincinnati Medical School.
1845 - He invented and patented a method of manufacturing Bromine from salt wells that was highly useful in the iron industry and was put on display in the World's fair.
1853 - He developed the technique of Spectral Analysis.
1855 - He invented an expansion of spectrum analysis to include the optical properties of gas.
1858 - He invented a patented method to extract oil from coal and shale.
1881 - He died on the 18th of September.
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