Robert Tigerstedt Directory References Discover What Is the Most Widely Practiced Religion in the World? 10 Great Sports Rivalries How Did the Sperm Whale Get Its Name? How Deadly Is Quicksand? 10 Failed Doomsday Predictions The World’s 5 Most Commonly Used Writing Systems Timeline of the Space Race, 1957–69 Contents Robert Tigerstedt Finnish-born physiologist Ask the Chatbot a Question Ask the Chatbot a Question Learn about this topic in these articles:discovery of renin In renin…was discovered in 1898 by Robert Tigerstedt and Per Bergman, researchers at the Karolinska Institute in Stockholm. See also renin-angiotensin system.Read More