Conversation so far:
What was Vaslav Nijinsky biography?
Vaslav Nijinsky was born in 1889 or 1890 in Kiev, Russian Empire, as Wacław Niżyński, to ethnic Polish parents
Who were Vaslav Nijinsky parents?
touring dancers Tomasz Niżyński and Eleonora Bereda

Question: How did he get interested in ballet?
Self-contained rewrite: How did Vaslav Nijinsky get interested in ballet?