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Ivan Lutsevich, better known by his pen name Yanka Kupala, was a prominent Belarusian poet, playwright, and public figure. He is widely regarded as the national poet of Belarus and played a pivotal role in shaping the Belarusian literary tradition. Kupala's works are known for their deep emotional resonance, lyrical beauty, and exploration of themes related to Belarusian identity, history, and culture.