1775 – Born on the 30th of September in Carrickfergus, Ireland.
1798 – He left Ireland after the failure of the uprising of the United Irishmen
and moved to Princeton, New Jersey.
– He taught Mathematics at various schools in the United States.
1808 – His formulation of the method of least squares was published.
1843 – He died on the 10th of August in New Brunswick, New Jersey.