Chance for an event to happen any time a German naval unit wins a combat, where a giant sea creature is reported in the wreckage. Based off the supposed U-28 event in ww1.

Event where a random civil war happens around the globe, it could help spice up stuff in a region, also cenario where the central american republic is form.

Hirohito Invents anime

Maybe something with time travelers

The soviet Union gets a choice to try and reform the Russian Empire (at its peak)
(Free War goals and cores)

An event where all of Britain's puppets break free and form a new faction and all attack Britain

event to Reform the Persian Empire and it has a chance to reform at its borders before the Persian Wars or With only some of the territorys

An event where all 3 of the Georgia's Unite into the, um... let me think of a name one second
Georgian Empire, Georgian Confederation, or Imperial Georgia

Random meteors dropping and destroying buildings, infrastructure, etc?

if world tension gets to like 40% by 1937 Switzerland stop being a netural democracy and becomes a warmongering monarchy maybe they can reform the holy roman empire because they used to be in it

maybe a really weird one is in the USA a coup by Ronald Mcdonald who turns the USA into the Mcdonald Empire of Mcdonald Burger federation

I like the Switzerland one, but I am not going to be remaking entire countries for the McDonald USA, sorry.

thats fine I knew the Mcdonalds one was a bit far feched

Nucelar Melt Down-
if you have have a nucelar reactor in a province it has a chance to get a event called Nucelar Melt Down which causes the Infastructure to go down 1 level or 2

Add an event where Toto starts a civil war in Africa in order to bless the rains