Alexander Fleming was a Scottish bacteriologist and one of the greatest medical scientists in history. Born on 6 August 1881, he is best known for discovering penicillin in 1928. His discovery marked the beginning of the antibiotic era and revolutionized modern medicine. Penicillin became the first widely effective antibiotic used to treat bacterial infections. Fleming’s work helped save millions of lives around the world. His discovery greatly reduced deaths from infection

On July 8, 1497, Portuguese explorer Vasco da Gama departed from Lisbon with four ships on a mission to discover a direct sea route from Europe to India. Commanding a crew of around 170 men, he navigated across the Atlantic Ocean and around the Cape of Good Hope. After nearly 11 months at sea, his expedition reached Calicut (present-day Kozhikode, Kerala) on May 20, 1498. This remarkable achievement established the first direct maritime connection between Europe and Asia. T