My last game is by far the weirdest I've seen, many tiny weird things happened not 1 just 1 huge thing:
Provence conquered all of Britany and is around even in 1650
England still holds all the northen French coast
Guyenne is released
Byzantium existed until 1600, I was the one to kill it not AI, I felt sad doing so

and no I didn't do anything to affect its survival with exception the full annexation in the end
Bohemia messed up everything and was 1 province minor so when the pu came with Austria, bohemia was worthless
Novgorod formed Russia and squeezed Muscovy with the help of Nogai
Burgundy exists in 1650 but has lost half its subjects
France never never bothered to conquer Calais until 1620 (they could get access to Calais) and in that war they lost all the coat, released Guyenne etc
Ottomans expanded into middle east and central Africa
Tarabestan is huge and Persia is a tiny dot
Spain has conquered most of northwest Africa, with morocco going more deep in africa
England until 1600 has taken from Scotland only the tiny islands on the north (sorry don't know name) and then fully annexed them out of nowhere in a war
Bavaria is huge, when I say huge I really mean they are massive ( they lost few power in some wars but still) , they were half the HRE but that didn't mean he was any good as an emperor..... (Commonwealth has northen HRE, I have all Austria and Switzerland, france feeling *blurry* from losing the coast is coming from the west)
The mamluks from 1500-1600 fully occupied Rhodes,Cyprus,Crete and Negroponte
There are only 25 countries in the HRE as of now
also I saw Estonia for the first time (didn't last long 2 years later Sweden ate it ...)