Wednesday, the protestors seized an Interior Ministry armory and that night started moving weapons to Kiev.
Thursday, 80 protesters and an unknown number of riot police were killed.
Friday, the riot police that guarded Mr. Yanukovych left after he signed an agreement with a couple of opposition leaders. Said deal was dead as soon as the protestors learned of it. Individual protestor groups negotiated cease fire terms with individual police commanders. Most were willing to leave if granted safe passage. Mr. Yanukovych fled, and the protestors took the main govt buildings without incident.
Saturday, Mr. Yanukovych refused to step down or resign. Ms Tymoshenko declined consideration for leadership roles.
Monday, interrim govt issues arrest warrant to Mr. Yanukovych. Rumors are that he fled the country, or went to Sevastopol. It looks like border police stopped him from boarding a plane to Russia. Hardline police forces are also regrouping to Crimea. Pro-Russian militias are forming, motivated largely off Russian propaganda.