19 December
19 December: Tribute to Robert Andrews Millikan
Suman Kumar
19 December : Remembering Albert Abraham Michelson on Birthday
OV Digital Desk
19 December in Indian and World History
OV Digital Desk
19 December: Google Doodle celebrates Judith Leyster
OV Digital Desk
19 December: Prathibha Patil an Indian Politician
OV Digital Desk