15 April
Nikolay Semyonov: Mastermind of Chemical Dynamics
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Leonhard Euler: Master Mathematician and Visionary
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Mimar Sinan: Architectural Master of the Ottoman Empire
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Eugรจne Poubelle and the Introduction of Waste Bins in Paris
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The Life and Achievements of Johannes Stark
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Guru Nanak: Light of Divine Wisdom
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Samaun Samadikun: A Visionary Statesman of Indonesia
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Pohela Boishakh and its Significance
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Nikolaas Tinbergen: The Father of Ethology
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15 April in Indian and World History
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