Technology names - Use one of the following entries with the invest code.

land_tech

naval_tech
production_tech
trade_tech
government_tech
country_morale_tech
advisor_arrived_tech
ledger_naval_tech
ledger_production_tech
ledger_goverment_tech
cureent_tech

While ingame, hit § (the key under ESC for some ppl), ALT+21 on the numpad to access the console. You can now use the following codes, has to be case sensitive:

Code: Result:

discover <province ID> Discover indicated province
colonist Get colonists
diplomat Get diplomats
merchant Get merchants
missionary Get missionaries
cash Get money
pirate Get pirates
prestige Get prestige
spy Get spies
stability Get stability
invest <technology name> <money> Invest in that technology
die native Native attack
revolt <province ID> Start revolt
fow <on or off> Toggle fog of war
fullscreen Toggle full screen mode
event <event ID> Trigger event
undiscover <province ID> Undiscover indicated province