[1] http://en.wikipedia.org/wiki/Crimean_status_referendum,_2014...
http://en.wikipedia.org/wiki/Crimean_referendum,_2014
In the evening of 16 March 2014, Mikhail Malyshev, the Crimean election Spokesman, reported that as of 20:00, 1,250,427 people or 81.36% voted in the Autonomous Republic of Crimea and 274,136 or 89.50% voted in Sevastopol for a total of 1,524,563 or 82.71% of the electorate.[129] ITAR-TASS initially reported this as 1,724,563 voters in total,[130] but corrected it later.[131] The discrepancy led to some reports of a 123% turnout in Sevastopol.
This is isn't like South Sudan where part of the country separated through referendum and was immediately recognized as a new entity. It's still controversial, hence the label on the map.