MASLENITSA is the Ancient Slavic tradition to invite Spring into Life. Maslenitsa is an Eastern Slavic folk holiday that takes place the week before the start of Russian Orthodox Lent (this year, it starts March 18). Though now tied to the Christian calendar, Maslenitsa has roots in ancient Slavic sun worshippers — it originally marked the end of winter and advent of spring   How will we celebrate  Maslenitsa at the Russian House: We will have a lot of Pancakes – Blini…