● In 1749, the famous British scientist Edward Jenner was born. He invented the 'smallpox' vaccine. Edward Jenner's vaccine is also considered the world's first successful vaccine. He first used this vaccine on 8 year old boy who was found to be successful.
● Today is World (वर्ल्ड) Hypertension Day. Hypertension is also called high blood pressure. It started in the year 2005.
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