1814 – He was born at in Württemberg, and educated at the University of Tübingen.
1844 – His greatest work is his Philosophie der Griechen , though he also wrote theology and published three volumes of philosophical essays.
1847 – He became a professor of theology at Berne.
1849 – He became a professor of theology at Marburg, and then he migrated soon to the faculty of philosophy as the result of disputes with the Clerical party.
1862 – He became professor of philosophy at the University of Heidelberg.
1872 – He moved to Berlin.
1895 – He retired this year
1902 – This book he continued to amplify and improve in the light of further research; the last edition appeared in this year. It was translated into most of the European languages and became the recognized text-book on Greek philosophy.
1908 – The year he died.