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Rajyalakshmi - Author on ShareChat: Funny, Romantic, Videos, Shayari, Quotes
Rajyalakshmi
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#చరిత్రలో ఈ రోజు
చరిత్రలో ఈ రోజు - 23rd February History T Discovery of Hydrogen (1765): Henry Cavendish isolated the element which he termed "flammable air" First Polio Vaccine Inoculations (1954):| The first mass vaccination of children with the Jonas Salk vaccine began in Pittsburgh Pennsylvania Establishment of ISO (1947): The International Organization for Standardization began operating: 23rd February History T Discovery of Hydrogen (1765): Henry Cavendish isolated the element which he termed "flammable air" First Polio Vaccine Inoculations (1954):| The first mass vaccination of children with the Jonas Salk vaccine began in Pittsburgh Pennsylvania Establishment of ISO (1947): The International Organization for Standardization began operating: - ShareChat