Nelson Rolihlahla Mandela released from prison after 27 year

Nelson Rolihlahla Mandela, the South-African anti apartheid activist was released from Victor Verster Prison in Paarl after 27 Years on 11February 1990.

National Inventors’ Day

National Inventors’ Day is celebrated on February 11th in United States of America
National Inventors’ Day is celebrated as the birth anniversary of Thomas Alva Edison, who is one of the most valuable inventors in United States of America.

Thomas Alva Edison

Thomas Alva Edison was born on February 11, 1847 in US .He  was an American inventor and businessman. He developed many devices that greatly influenced life around the world, including the phonograph, the motion picture camera, and a long-lasting, practical electric light bulb. He died on  October 18, 1931.