15 December in history.

1970

Venera 7 lands on Venus. The Soviet spacecraft Venera 7 landed on Venus, the first successful soft landing on another planet.

Wikipedia: Venera 7

Photo: Emerezhko / Wikimedia Commons (CC BY-SA 4.0)

More from 15 December

1. 

   1791

   The Bill of Rights becomes law

   The first ten amendments to the US Constitution, known together as the Bill of Rights, were ratified.

   Wikipedia: United States Bill of Rights

   Photo: National Archives and Records Administration. Office of the Federal Register. 4/1/1985 / Wikimedia Commons (Public domain)

2. 

   1871

   A 16-year-old sends Arizona's first telegram

   Sixteen-year-old telegraphist Ella Stewart sent the first telegraph message from Arizona Territory, at the office in Pipe Spring.

   Wikipedia: Ella Stewart UdallWikipedia: Pipe Spring National Monument

   Photo: photographer unknown; book written by David King Udall and Pearl Udall Nelson / Wikimedia Commons (Public domain)

3. 

   1893

   Dvořák's New World Symphony premieres

   Antonín Dvořák's Symphony No. 9, "From the New World", was first played in public at Carnegie Hall in New York.

   Wikipedia: Symphony No. 9 (Dvořák)Wikipedia: Antonín Dvořák

   Photo: Unknown author / Wikimedia Commons (Public domain)

4. 

   1965

   Two spacecraft meet in orbit

   Gemini 6A launched with Wally Schirra and Thomas Stafford. Four orbits later it met Gemini 7, the first time two crewed spacecraft came together in space.

   Wikipedia: Gemini 6AWikipedia: Space rendezvous

   Photo: NASA / Wikimedia Commons (Public domain)

Moments chosen for discovery, creativity and courage. Each one links to a source where you can read more; photos are credited to their owners.