January 27 is the 27th day of the year. There are 339 days remaining until the end of the year.
January 27 is International Holocaust Remembrance Day.
- 1593 – The Vatican opened seven-year trial of scholar Giordano Bruno for heresy and blasphemy.
- 1888 – The National Geographic Society was founded in Washington, D.C.
- 1825 – The US Congress approved Indian Territory (in present-day Oklahoma), clearing the way for forced relocation of the Eastern Indians on the “Trail of Tears.”
- 1945 – The Russian Army liberates the Auschwitz-Birkenau concentration camp in Poland.
- 1967 – Astronauts Gus Grissom, Edward White, and Roger Chaffee were killed in a fire during a test of their Apollo 1 spacecraft at the Kennedy Space Center, Florida.
- 1996 – Germany first observed International Holocaust Remembrance Day.
- 2006 – Western Union discontinued its telegram services.