Today’s History, 19 October 2017 – Aaj Ka Itihas Aur Panchang In Hindi

• German Theoretical Physicist Max Planck, Who  Invent Black-Body Radiation In 1900

•  Indian American Astrophysicist Subrahmanyan Chandrasekhar Was Born In 1990, Who Was Awarded The 1983 Nobel Prize

आज का इतिहास, Archives – Live Today, Hindu Panchang 19 October 2017, Panchang, Special News In Hindi, Indian History – On This Day, आज का इतिहास, भारत के इतिहास में आज का दिन, जाने इतिहास के पन्ने को, आज के दिन का महत्व, आज के दिन का महत्व, आज क्या खास है, आज क्या तिथि है, Remember Able October, German Theoretical Physicist, Max Planck, Black-Body Radiation, Indian American Astrophysicist, Subrahmanyan Chandrasekhar, Nobel Prize