1873 – Born on the 7th of September in Waterloo, Iowa, USA.
1902 – He began a teaching career at the University of Kansas.
1907 – Educated at the University of Wisconsin and Columbia University majoring in history.
1915 – Wrote first book The Beginnings of the American People.
1917 – Served as teacher in Cornell University.
1918 – Followed by the excellent The Eve of the Revolution.
1922 – The Declaration of Independence.
1932 – He is best known for The Heavenly City of the Eighteenth-Century Philosophers, four lectures on The Enlightenment delivered at Yale University.
1935 – Everyman His Own Historian.
1945 – Died on 10th April in Ithaca, New York, USA.