Ewald was born in
Göttingen where his father was a linen weaver. In 1815 he was sent to the
gymnasium, and in 1820 he entered the
University of Göttingen, where he studied with
J. G. Eichhorn and
T. C. Tychsen, specialising in oriental languages. At the close of his academic studies in 1823 he was appointed to a mastership in the gymnasium at
Wolfenbüttel, and made a study of the oriental manuscripts in the Wolfenbüttel library. But in the spring of 1824 he was recalled to
Göttingen as theological tutor (), and in 1827 (the year of Eichhorn's death) he became professor extraordinarius in philosophy and lecturer in
Old Testament exegesis. Of all of Gauss's children, Wilhelmina was said to have come closest to her father's talent, but she died in 1840. In 1831 Heinrich Ewald was promoted to professor ordinarius in
philosophy; in 1833 he became a member of the Royal Scientific Society, and in 1835, after Tychsen's death, he entered the faculty of
theology, taking the chair of Oriental languages. Two years later occurred the first important episode in Ewald's studious life. In 1837, on 18 November, along with
six of his colleagues he signed a formal protest against the action of King
Ernst August in abolishing the liberal constitution of 1833, which had been granted to the
House of Hanover by his predecessor
William IV. This procedure of the seven professors led to their expulsion from the university (14 December). Early in 1838 Ewald received a call to
Tübingen, and there for upwards of ten years he held a chair as professor ordinarius, first in
philosophy and afterwards, from 1841, in theology. To this period belong some of his most important works, and also the commencement of his bitter feud with
F.C. Baur and the Tübingen school. In 1847, "the great shipwreck-year in Germany," as he has called it, he was invited back to Göttingen on honourable terms—the liberal constitution having been restored. He accepted the invitation. In 1845, Ewald remarried, this time to Auguste Schleiermacher (1822–1897); the couple had a daughter in 1850 who was named Caroline Therese Wilhelmine. In 1862-1863 Ewald took an active part in a movement for reform within the Hanoverian Church, and he was a member of the
synod which passed the new constitution. He had an important share also in the formation of the
Protestantenverein, or Protestant association, in September 1863. But the chief crisis in his life arose out of the
Austro-Prussian War of 1866. His loyalty to King
George V of Hanover (son of Ernst August) would not permit him to take the oath of allegiance to the victorious King
William I of Prussia, and he was therefore placed on the retired list, though with the full amount of his salary as
pension. This degree of severity might have been held by the Prussian authorities to be unnecessary, had Ewald been less hostile in his language. The violent tone of some of his printed manifestoes about this time, especially of his
Lob des Königs u. des Volkes, led to his being deprived of the
venia legendi (1868) and also to a criminal trial, which, however, resulted in his acquittal (May 1869). Then, and on two subsequent occasions, he was returned by the city of Hanover as a member of the North German and German parliaments. In June 1874 he was found guilty of a libel on
Otto von Bismarck, whom he had compared to
Frederick the Great in "his unrighteous war with Austria and his ruination of religion and morality," to
Napoleon III in his way of "picking out the best time possible for robbery and plunder." For this offence he was sentenced to undergo three weeks' imprisonment. He died in Göttingen of heart disease. ==Influence==