[മലയാളം]

 671 – Emperor Tenji of Japan introduces a water clock (clepsydra) called Rokoku. The instrument, which measures time and indicates hours, is placed in the capital of Ōtsu.

1832 - Birth day of Nicolaus August Otto (Death : 26 January 1891) was a German engineer who successfully developed the compressed charge internal combustion engine which ran on petroleum gas and led to the modern internal combustion engine.

1916 – The Arab Revolt against the Ottoman Empire was declared by Hussein bin Ali, Sharif of Mecca.

1935 - Alcoholics Anonymous was founded in Akron, Ohio, by Dr. Robert Holbrook Smith and William Griffith Wilson.



1972 – Birth day of Sundar Pichai, Indian-American businessman and Google CEO

2002 – The first direct electronic communication experiment between the nervous systems of two humans is carried out by Kevin Warwick in the United Kingdom.

2003 – The Spirit rover is launched, beginning NASA's Mars Exploration Rover mission.

2018 – Opportunity rover, sends it last message back to earth. The mission was finally declared over on February 13, 2019.