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In Photos: Russians Welcome Winter's End with Maslenitsa Festivities
Maslenitsa, which is rooted in ancient Slavic tradition, involves the burning of effigies, wearing traditional costumes, singing and dancing.
But most important is the cooking and eating blini, a thin, crepe-like pancake that symbolizes the arrival of the springtime sun. For this reason, Maslenitsa is often called Pancake Week by English speakers.
The week of Maslenitsa also takes place before the start of Lent for Orthodox Christians, meaning it is the last chance for more devout Russians to take part in parties, dancing and other festivities before the Lenten season.
Here's a look at this year's festivities: