On Jan. 27, 1756, composer Wolfgang Amadeus Mozart was born in Salzburg, Austria.
In 1880, Thomas Edison received a patent for his electric incandescent lamp.
In 1888, the National Geographic Society was incorporated in Washington, D.C.
In 1944, during World War II, the Soviet Union announced the complete end of the deadly German siege of Leningrad, which had lasted for more than two years.
In 1945, during World War II, Soviet troops liberated the Nazi concentration camps Auschwitz and Birkenau in Poland.
In 1967, astronauts Virgil I. “Gus” Grissom, Edward H. White and Roger B. Chaffee died in a flash fire during a test aboard their Apollo spacecraft.
In 1973, the Vietnam peace accords were signed in Paris.
In 1981, President Ronald Reagan and his wife, Nancy, greeted the 52 former American hostages released by Iran at the White House.
In 2006, Western Union delivered its last telegram.
In 2010, Apple CEO Steve Jobs unveiled the iPad tablet computer during a presentation in San Francisco. J.D. Salinger, the reclusive author of “The Catcher in the Rye,” died in Cornish, New Hampshire, at age 91.
In 2013, Flames raced through a crowded nightclub in southern Brazil, killing 242 people.
In 2018, a suicide bombing in the Afghan capital of Kabul killed more than 100 people; the attacker was driving an ambulance full of explosives and raced through a security checkpoint after saying he was transferring a patient to a hospital.
In 2020, China confirmed more than 2,700 cases of the new coronavirus with more than 80 deaths in that country; authorities postponed the end of the Lunar New Year holiday to keep the public at home. U.S. health officials said they believed the risk to Americans remained low and that they had no evidence that the new virus was spreading in the United States; they advised Americans to avoid non-essential travel to any part of China.