Chapter 21: English and American Revolutions "Sir Christopher Wren" Introduction      You have read that Christopher Wren is best known as the architect of St. Paul's Cathedral, a London landmark. You also learned that Wren was a noted mathematician and astronomer at Oxford University. Destination Title: Sir Christopher Wren Web site Note: Clicking on the link above will launch a new browser window. Need help using your browser for this activity? Click here for tips. Directions Start at the Sir Christopher Wren Web site. Scroll down the Web page, reading and analyzing the information about Christopher Wren. Answer the following questions. 1. What was Wren famous for in his own day, according to Isaac Newton? 2. What was Wren's contribution to the field of optics? 3. What indication is there that Wren's mathematical ideas were important to developments in the field? 4. To what field do you think Christopher Wren made the greatest contribution? Explain.