15 April
15 April: Remembering Guru Nanak on his Birth Anniversary
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15 April: Remembering Samaun Samadikun on Birthday
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14 April: Pohela Boishakh and its Significance
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15 April: Remembering Mimar Sinan on Birthday
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15 April: Remembering Nikolay Semyonov on Birthday
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15 April: Remembering Nikolaas Tinbergen on Birthday
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15 April: Remembering Johannes Stark on Birthday
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15 April: Remembering Eugène Poubelle on Birthday
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15 April in Indian and World History
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15 April: Remembering Leonhard Euler on Birthday
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