➢World Tuberculosis Prevention Day, ➢1775: Birth of old poet, writer, and orator Muthuswamy Dikshitulu, ➢1882: Mycobacterium tuberculosis, the cause of tuberculosis, was discovered by a scientist named Robert Koch. ➢1977: Morarji Desai was appointed as the Prime Minister of India, and ➢ 1896: A.S. Popov created the first radio transmission signals in history.