Win the New World Scenario as England.
This achievement require Spain and Inca DLC.
To get this achievement, you need to play the Conquest of The New World scenario.
You have to gather 1000 points by the end of the turns limit.
If you finish the game with less than 1000 points, you will get the defeat screen, but it seems that if you choose "One more turn", you then get a victory screen (time limit).