![Jean Sylvain Bailly (1736 – 1793) French astronomer, mathematician, freemason, political leader of the early part of the French Revolution. He presided over the Tennis Court Oath, served as the mayor of Jean Sylvain Bailly (1736 – 1793) French astronomer, mathematician, freemason, political leader of the early part of the French Revolution. He presided over the Tennis Court Oath, served as the mayor of](https://c8.alamy.com/comp/RJH52M/jean-sylvain-bailly-1736-1793-french-astronomer-mathematician-freemason-political-leader-of-the-early-part-of-the-french-revolution-he-presided-over-the-tennis-court-oath-served-as-the-mayor-of-paris-from-1789-to-1791-and-was-ultimately-guillotined-during-the-reign-of-terror-RJH52M.jpg)
Jean Sylvain Bailly (1736 – 1793) French astronomer, mathematician, freemason, political leader of the early part of the French Revolution. He presided over the Tennis Court Oath, served as the mayor of
![Louis XVI and Jean Sylvain Bailly, President of the National Assembly - Item 5593 (Image:A) - historicmedals.com Louis XVI and Jean Sylvain Bailly, President of the National Assembly - Item 5593 (Image:A) - historicmedals.com](https://www.historicmedals.com/medalImages/Louis-XVI-and-Jean-Sylvain--Bailly,-President-of-the-National-Assembly-snuff-box,--5593A.jpg)
Louis XVI and Jean Sylvain Bailly, President of the National Assembly - Item 5593 (Image:A) - historicmedals.com
![Jean Sylvain Bailly, 1736 – 1793. French astronomer, mathematician, freemason and political leader of the early part of the French Revolution Stock Photo - Alamy Jean Sylvain Bailly, 1736 – 1793. French astronomer, mathematician, freemason and political leader of the early part of the French Revolution Stock Photo - Alamy](https://c8.alamy.com/comp/H0WMRJ/jean-sylvain-bailly-1736-1793-french-astronomer-mathematician-freemason-H0WMRJ.jpg)
Jean Sylvain Bailly, 1736 – 1793. French astronomer, mathematician, freemason and political leader of the early part of the French Revolution Stock Photo - Alamy
![Jean-Sylvain Bailly: Revolutionary Mayor of Paris: Gene A. Brucker: 9781014428516: Amazon.com: Books Jean-Sylvain Bailly: Revolutionary Mayor of Paris: Gene A. Brucker: 9781014428516: Amazon.com: Books](https://m.media-amazon.com/images/I/61kck2+aobL._AC_UF1000,1000_QL80_.jpg)
Jean-Sylvain Bailly: Revolutionary Mayor of Paris: Gene A. Brucker: 9781014428516: Amazon.com: Books
![File:Anonymous - Portrait de Jean-Sylvain Bailly (1736-1793), maire de Paris. - P1463 - Musée Carnavalet.jpg - Wikimedia Commons File:Anonymous - Portrait de Jean-Sylvain Bailly (1736-1793), maire de Paris. - P1463 - Musée Carnavalet.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/1/1c/Anonymous_-_Portrait_de_Jean-Sylvain_Bailly_%281736-1793%29%2C_maire_de_Paris._-_P1463_-_Mus%C3%A9e_Carnavalet.jpg)
File:Anonymous - Portrait de Jean-Sylvain Bailly (1736-1793), maire de Paris. - P1463 - Musée Carnavalet.jpg - Wikimedia Commons
![File:Jean-François Garneray - Portrait de Jean-Sylvain Bailly (1736-1793), Maire de Paris - P119 - Musée Carnavalet.jpg - Wikimedia Commons File:Jean-François Garneray - Portrait de Jean-Sylvain Bailly (1736-1793), Maire de Paris - P119 - Musée Carnavalet.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/b/b6/Jean-Fran%C3%A7ois_Garneray_-_Portrait_de_Jean-Sylvain_Bailly_%281736-1793%29%2C_Maire_de_Paris_-_P119_-_Mus%C3%A9e_Carnavalet.jpg/1611px-Jean-Fran%C3%A7ois_Garneray_-_Portrait_de_Jean-Sylvain_Bailly_%281736-1793%29%2C_Maire_de_Paris_-_P119_-_Mus%C3%A9e_Carnavalet.jpg)
File:Jean-François Garneray - Portrait de Jean-Sylvain Bailly (1736-1793), Maire de Paris - P119 - Musée Carnavalet.jpg - Wikimedia Commons
![Image of Jean Sylvain Bailly, French astronomer, mathematician and revolutionary politician (litho) by French School, (19th century) Image of Jean Sylvain Bailly, French astronomer, mathematician and revolutionary politician (litho) by French School, (19th century)](https://images-cdn.bridgemanimages.com/api/1.0/image/600wm.XXX.1934890.7055475/981212.jpg)
Image of Jean Sylvain Bailly, French astronomer, mathematician and revolutionary politician (litho) by French School, (19th century)
![Jean Sylvain Bailly (1736-1793), French astronomer, writer and politician. Artist: Unknown - Album alb9624402 Jean Sylvain Bailly (1736-1793), French astronomer, writer and politician. Artist: Unknown - Album alb9624402](https://www.album-online.com/photos/prev/ZmFlN2FhMA/album_alb9624402.jpg)