1818 - Born on December 24th in Salford, Manchester, England. English physicist.
1840 - He was enabled to give a quantitative statement of the law according to which heat is produced in a conductor by the passage of an electric current, and in succeeding years he published a series of valuable researches on the agency of electricity in transformations of energy.
1847 - Married to Amelia Grimes on August 18th.
1849 - He presented to the Royal Society a memoir which, together with a history of the subject, contained details of a long series of determinations, the result of which was 772.
1850 - He was a member of the Royal Society.
1852 - Received the Royal Medal.
1860 - A new form of condenser was tested on the small engine employed, and the results it yielded formed the starting-point of a series of investigations which were aided by a special grant from the Royal Society, and were described in an elaborate memoir presented to it on the 13th of December.
1867 - Was a fellow of the Royal Society of Edinburgh.
1870 - Recipient of the Copley Medal.
1884-1887 - His scientific papers were collected and published by the Physical Society of London: the first volume, which appeared, contained the researches for which he was alone responsible, and the second, those which he carried out in association with other workers.