On this day:

1498 Portuguese explorer Vasco da Gama arrives at Calicut, India becoming the first European to reach India by sea

1873 Blue jeans are patented by Levi Strauss and Jacob Davis 

1992 India launches its 1st satellite independently

Born on this day:

1894 Chandrashekarendra Saraswati, Indian Hindu sage, Jivanmukta

Gone on this day:

1506 Christopher Columbus, Italian explorer, discovered the Americas

1932 Bipin Chandra Pal, Indian nationalist and freedom fighter, dies at 73