Ukraine's primary language is Ukrainian, though Russian is also widely spoken. Architecture in eastern Ukraine was influenced by Russian styles after Ukraine united with Russia. The tradition of pysanky Easter eggs, drawn on with wax dyes, is thousands of years old and predates Christianity in Ukraine. Common Ukrainian musical instruments include lutes, banduras, flutes, and drums. Traditional dances include the Kozak, Kozachok, Tropak, and Hopak.