Your description of the events is nonsense.
Government violence and government crack downs on demonstrations that were peaceful are also part of the story.
And BTW, Putin has no business entering Ukraine. It's seems that you are making the excuse that he does.
Ah, that’s the reason for the timeline. You really should read up on George Soros and his role.
To be clear, though: I mention Soros and the EU’s role in the Maidan to legitimize Russia’s actions vis-à-vis the Budapest treaty, not to legitimize Yanukovich.