Days And Years
16th October is celebrated as

World food Day
World Mathematics Day
World Heart 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

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

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