Days And Years
21st September is celebrated as

International Men’s Day
World diabetes Day
World Television Day
International Day of Peace

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Days And Years
India Celebrates February 28 every year as 'National Science Day' because on this day

in 1928 C.V. Raman discovered what was later called the 'Raman Effect'
first Indian Space craft was launched
Vikram Sarabhai was born
Nehru laid the foundation of Science labs all over India

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