There's spring cleaning, then there's this: More than 1 million Moscow residents took part in a mass cleanup event at city parks and squares, officials said.

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Moscow Deputy Mayor Pyotr Biryukov said 1.4 million city residents braved some terrible weather to pick up litter and beautify city streets, parks and public squares.

The so-called subbotnik, Russian for "Saturday cleanup," stretches back to the Soviet era, RIA Novosti said.