1817 – Born on the 27th of March Kilchberg,Zurich.
1839 – He studied Botany under A.P. de Candolle at Geneva.
1840 – He finished his botanical thesis at Zurich.
1852 – He was called to fill the chair of botany in Albert Ludwings University of Frieburg.
1857 – He was promoted to Munich and remained as professor.
1891 – He died on the 11th of May.