Days And Years
10th October is celebrated as

World Coffee Day
International Day of Peace
World Car free Day
World Mental Health Day

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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'
Vikram Sarabhai was born
Nehru laid the foundation of Science labs all over India
first Indian Space craft was launched

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