1850 – Born on the 16th of April in Shutesbury, Massachusetts.
1872 – He graduated from the Amherst College.
1873 – He went to Europe and devoted three years to travel and study.
1876 – He received the degree of PhD at Heidelberg, Germany.
– He was a fellow in history at Johns Hopkins University for two years.
1880 – He began his famous seminar in history.
1883 – He was appointed associate professor.
– He is credited with coining the phrase "political science".
1884 – He was the secretary of the American Historical Association at its foundation.
1901 – He died on the 30th of July.