25 BC

Year 25 BC was either a common year starting on Wednesday, Thursday or Friday or a leap year starting on Wednesday or Thursday of the Julian calendar. At the time, it was known as the Year of the Consulship of Augustus and Silanus.

 Events 
 Imperator Caesar Augustus becomes Consul for the ninth time. His partner is Marcus Junius Silanus.
 The temple to Neptune on the Circus Flaminius is built
 Estimation: Rome becomes the largest city of the world
 Galatia becomes a Roman province
 Government in China gives tributary states 20,000 rolls of silk cloth and about 20,000 pounds of silk floss.

 Births 

 Aulus Cornelius Celsus, author of De Medicina (d. c. AD 50)

 Deaths 

 King Amyntas