• 1 January - Paris administratively annexes neighbouring communes. • 23 January -
Cobden-Chevalier Treaty Free Trade treaty is signed between the
United Kingdom and France. • 9 April - Typesetter
Edouard-Leon Scott de Martinville sings "
Au clair de la lune" into his
phonautograph, producing the world's earliest known
sound recording of a song. However, it would not be converted back into audible sound until 2008. • 18 October - At the end of the
Second Opium War, British and French troops enter the
Forbidden City in
Beijing. • 24 October -
Convention of Peking signed by Chinese with Britain and France. ==Births==