Isaak Iselin
Who was Isaak Iselin?
Swiss philosopher
Biographical data adapted from Wikipedia’s article on Isaak Iselin (CC BY-SA 4.0).
Biography
Isaak Iselin was born on March 7, 1728, in Basel, Switzerland, where he lived his entire life, passing away there on July 15, 1782. He studied law and philosophy at the University of Basel and later at the University of Göttingen, becoming a key figure in the German-speaking Enlightenment. His education exposed him to major European ideas, and he spent his career blending law, political philosophy, and history.
In 1756, Iselin became the secretary of the republic of Basel, a position he held for life, which gave him both administrative power and a chance to engage with larger political reform issues. He co-founded the Helvetic Society in 1761, the first Swiss reform group, bringing together thinkers from various Swiss regions to promote civic values and moderate political changes.
His major scholarly work, "Geschichte der Menschheit" (History of Humanity), was first published in 1764 and stands as the first comprehensive history of humanity in the German language. It challenged Montesquieu’s focus on climate and geography as shaping human society and critiqued Jean-Jacques Rousseau's view of civilization and historical progress. Instead, Iselin offered a more hopeful view of human moral and social development, influenced by the Scottish Enlightenment, especially Lord Kames's ideas on human progress.
Iselin had an extensive correspondence network throughout Europe, a typical way of exchanging ideas in the 18th century. Among his correspondents was the Berlin philosopher Moses Mendelssohn, who praised Iselin's "Geschichte der Menschheit" and regarded him as one of the best German prose writers of that time. Mendelssohn’s recognition helped boost Iselin's fame beyond Switzerland. Iselin also founded and edited the "Ephemeriden der Menschheit," a journal on political economy and social reform, spreading Enlightenment ideas to a wider German-speaking audience.
Before Fame
Isaak Iselin grew up in Basel, a city known for its humanistic traditions and a university dating back to the fifteenth century. He started his education in law and philosophy at the University of Basel and later studied at the University of Göttingen, which was then a leading center of learning in the German-speaking world. During his time at Göttingen in the mid-eighteenth century, the university was particularly recognized for its professors of history and statistics. This experience seemed to deepen Iselin's interest in the historical aspects of human society.
After returning to Basel, Iselin got involved in civic life and started building the network of intellectual friendships and correspondences that would support his scholarly work. His appointment as secretary to the republic in 1756 marked his shift from a well-read young man to someone with actual administrative duties. It was from this role, balancing civic official duties and philosophical writing, that he began creating the works that would earn him wider recognition.
Key Achievements
- Authored Geschichte der Menschheit (1764), the first fully developed history of humanity in the German language
- Co-founded the Helvetic Society in 1761, the first national Swiss reform organization
- Served as secretary of the republic of Basel from 1756 until his death
- Founded and edited the Ephemeriden der Menschheit, an influential journal of political economy and social reform
- Established an international reputation through correspondence with leading Enlightenment figures including Moses Mendelssohn
Did You Know?
- 01.Moses Mendelssohn, reviewing the first edition of Geschichte der Menschheit in 1764, singled out Iselin as one of the best German prose writers of his time.
- 02.Iselin helped found the Helvetic Society in 1761, the earliest national organization in Switzerland explicitly dedicated to civic and political reform.
- 03.His Geschichte der Menschheit was written partly in direct intellectual argument against both Montesquieu's climate theory and Rousseau's idealization of pre-civilized humanity.
- 04.Iselin edited the journal Ephemeriden der Menschheit, one of the earliest German-language periodicals focused on political economy and social reform.
- 05.Despite his European-wide correspondences and reputation, Iselin spent his entire adult career in the city of his birth, serving as a civic official in Basel until his death in 1782.