1807, 6th October: Sir Humphrey Davy discovered a new metal, and named it Potassium.
1908, 6th October: Austria annexed Bosnia and Herzegovina.
1927, 6th October: Warner Bros. ‘Jazz Singer’, the world’s first talkie film, was released in the United States.
1927, 6th October: The first independent film processing film laboratory in India, Atmananda Laboratory, was set up by Narayanrao, also known as Dhanjibhai K. Desai.
1949, 6th October: The cornerstone of the National Defense Academy (NDA) building at Khadakwasla was laid by Pandit Jawaharlal Nehru.
1973, 6th October: Egypt and Syria invaded Israel.
1981, 6th October: Assassination of Egyptian President Anwar Sadat.
1987, 6th October: Fiji became a republic.
2007, 6th October: Jason Lewis completed a circumnavigation of the earth in a whaleboat.
2010, 6th October: Instagram, a mainstream photo-sharing application, was founded.
1773: Louis Philippe I, King of France.
1779: Mount Stuart Elphinstone, Scottish diplomat and governor of the Indian state of Mumbai.
1808: Ardaseer Wadia, Indian shipbuilder and engineer belonging to the Wadia shipbuilding family.
1866: Reginald Fessenden, Canadian inventor, founder of radiotelephony.
1887: Le Corbusier, Swiss-French architect, designer, painter, urban planner, writer, and one of the pioneers of what is now regarded as modern architecture.
1893: Meghnad Saha, an Indian astronomer and Member of Parliament.
1912: Dr. Hari Jeevan (H. J. Arnikar), Indian Atomic chemist, Professor.
1914: Thor Heyerdahl, a Norwegian navigator, and researcher.
1930: Richie Benoit, an Australian cricketer, and commentator.
1946: Vinod Khanna, Indian actor, filmmaker, and politician.
1946: Tony Gregg, English cricketer, and critic.
1661: Guru Har Rai, the seventh of ten Gurus of the Sikh religion.
1880: Benjamin Peirce, American mathematician.
1892: Lord Tennyson, English poet.
1951: W.K. Kellogg, an American industrialist, the founder of the Kellogg Company.
1951: Otto Fritz Meyerhof, German physician, and biochemist, winner of the Nobel Prize in Physiology.
1974: V K Krishna Menon, Indian politician, non-career diplomat, and a nationalist.
1981: Anwar el-Sadat, Egyptian politician, the third President of Egypt.
2007: L. M. Singhvi, Indian politician, Lawyer, Scholar, Diplomat, and Ambassador of India to England.
2015: Arpad Gonzalez, Hungary’s first president.
6-October-1779
Elphinston, historian and administrator of Mumbai province, was born.
6-October-1808
Ardaseer Cursetjee Wadia, professor, pioneer, innovator, chief engineer and Inspector of Machinery at the Steam Factory at Bombay and one of the dignitaries, was born.
6-October-1858
Nanasaheb Peshwa, a revolutionary of first mutiny, died.
6-October-1862
Indian Penal Code was notified. However, it was implemented from 1st January 1862.
6-October-1893
Meghnad N. Saha, astrophysicist, was born. In 1920, he developed the 'Thermal Ionization Equation', which has remained fundamental in all works on stellar atmospheres. This equation has been widely applied to the interpretation of stellar spectra, which are characteristic of the chemical composition of the light source.
6-October-1913
V. R. Kant, famous poet, was born.
6-October-1927
The first independent film processing laboratory, Atmanand Laboratory, was set up by Narayanrao alias Dhanjibhai K. Desai at Bombay.
6-October-1927
First Indian Cinematograph Enquiry Committee, under the chairmanship of Diwan Bahadur T. Rangachariar, was appointed by the Government.
6-October-1935
Jeevan D. Ghosh, cricket Test umpire from 1978-91, was born in Bengal. He has the distinction of having the longest umpiring career of 32 years in India.
6-October-1949
Jawaharlal Nehru laid the foundation stone of National Defence Academy in Kharakvasla near Pune.
6-October-1954
Nehru declared the National Health Scheme for the entire country.
6-October-1963
Baba Kharak Singh, freedom fighter and grand old man of Punjab, died.
6-October-1969
Bruna Coutinho, Indian Soccer(Football) player, was born in Calangute, Goa. He was recognised as Indian Player of the Year in 1996.
6-October-1974
Vengalil Krishnan Krishna Menon, great freedom fighter, barrister, leader, politician, nationalist and member of the Lok Sabha, passed away. He resigned as the defence minister soon after the Chinese aggression.
6-October-1983
Punjab Government was dismissed to halt religious and political violence by Indira Gandhi, who imposed President's rule in the state.
6-October-1985
P.T. Usha sets record for 400m (Women) in 51.61 seconds at Canberra .
6-October-1990
Justice Ranganath Mishra sworn in as Chief Justice of Supreme Court.
6-October-1992
Z. R. Ansari, former central minister, died.
6-October-1997
International Commodity Exchange Division of the India Pepper and Spice Trade Association in Kochi opened.
6-October-1997
I. K. Gujral, PM, begins visit to South Africa, which was the first ever by an Indian Prime Minister.
6-October-1997
Abhijit Kunte wins Asian Junior Chess title.
6-October-1998
Railways wins the BOB-Senior National Hockey championship for women defeating Haryana in the final at Chennai.
6-October-1999
INLD-BJP combine wins by big margin in Haryana.
6-October-1999
The DMK front is set to win a majority of LS seats in Tamil Nadu.
6-October-1999
Suraj Bhan sworn in Governor of Bihar.
6-October-1999
Sonia Gandhi, Congress(I) president, won the Bellary Lok Sabha seat defeating her BJP rival Sushma Swaraj by a margin of 56,100 votes.
6-October-2000
Mamata Banerjee, Trinamool Congress chief, withdraws her resignation from the Union Cabinet of Ministers.