1768-1834 1771-1850 1775-1817 1776-1861 1818-1897 1821-1862 1885-1959 1939-1945 american austen bd241 british buckle burckhardt families familyausten friedrich friedrichchristoph greatbritain hermeneutics history jacob jane militaryintelligence philosophy schleiermacher schlosser technicalassistance technology tizard unitedstates worldwar