Every time there is a change of party in a modern government.

It is so commonplace that we miss it, but one ruling organization steps down and another, often with opposing views, steps up.

Here you go: https://en.wikipedia.org/wiki/Velvet_Revolution

Women basically asked for the right to vote, and got it.

Danish constitution

https://en.m.wikipedia.org/wiki/Constitution_of_Denmark

(Though it probably helped that the French Revolution had happened before ;))

Those are called "election". The entire idea of an electoral democracy is that you have them once in a while, so the government stays aligned with the public wishes.