Press [Alt] + [Keypad 2] [Keypad 1] during game play to display the console window. Then, enter one of the following codes.

Code	Effect
Event x	Triggers Event X
cash	Gives you 1000 Pounds
goods [number]	Goods and money, defaults to 1000 if no value specified
instantproduction	1 Day Construction
instantresearch	1 Day Research
leadership	Gives you 100 Leadership Points
plurality [number]	Set countries plurality
prestige	Prestige
yesmen	AI responds favorably to requests;

Alternate: Open Console ingame by pressing Shift + 3