In case it slipped your mind, you can remember how Slavic things once were in Northern California at the Russian Festival in San Francisco on February 21-23  They’re offering long days of Russian entertainment including a  Balalaika Ensemble and  the Firebird Dance Ensemble, plus gifts such as Baltic amber, lacquer boxes and Matryoshka dolls. Keep you energy bolstered with borsch, piroshki, pelmeni and derigueur shots of flavored vodkas. Seniors $8.