Crusader Kings 2 shit

event RIP.11022 - Removes Great Pox
event RIP.11020 - Removes cancer
event RIP.11017 - Removes gout
event RIP.11023 - Removes leprosy
event RIP.11027 - Removes bubonic plague
event RIP.11030 - Removes the dreaded Aztec Disease
event RIP.11069 - Removes 'Sickly' trait
Add char ID after 'event RIP.XXXXX' to trigger the event for another character (e.g. 'event RIP.11069 1062886')

event 55000 - Changes either capital province or province where you are currently leading armies in to your culture
event 900 - Changes either capital province or province where you are currently leading armies in to your religion

To determine character ID, use debug_mode or charinfo (both commands do the same thing) and hover over a character's portrait.
Hovering over your own obviously gives you your own char ID.

To get province IDs, click the province in question and hover over the round flag thing that shows up in the top left and/or top right of the pop-up menu. You should see something like "c_maldives".
For numerical province IDs, go to the directory of the CK2 game on your hard drive, and then history > provinces.

Use destroy_settlement to get rid of vassals
Use kill on title claimants and their dynasties (or use yesman and then just assassinate them if you actually want to rack up your body count. not exactly useful if you want something besides a Murder bloodline)

event HF.23026 - Research on Roman concepts

https://ck2.paradoxwikis.com/Artifacts#Hermetic_Society
add_artifact

event 62320 - Free troops

https://ck2.paradoxwikis.com/Traits for internal trait names