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The U.S. Patent Office issues patent no. 23,989 to Thomas Edison for incandescent lighting.
National days, ongoing national weeks and months, and global observances for January 27, 2027. Plus historical events and birthdays.

January 27, 2027 celebrates National Chocolate Cake Day, plus 3 more.
Read the full story →Every year on January 27th Vietnam Peace Day commemorates the signing of the Paris Peace Accords. This event ended America’s involvement in the Vietnam War.
Read the full story →Each year on January 27th, the world remembers one of the most horrific events in modern history on Holocaust Remembrance Day. The Holocaust occurred during WWII when Nazi Germany killed millions of innocent victims.
Read the full story →Events that occurred on January 27 throughout history
The U.S. Patent Office issues patent no. 23,989 to Thomas Edison for incandescent lighting.
After two children died of diphtheria in the ice-bound Alaska Territory, a dog sled team composed of 20 mushers and 150 dogs came together to bring the antitoxin from Nenana, Alaska to Nome. They relayed the vials across 674 miles of frigid temperatures in 5 1/2 days meeting up on the Iditarod Trail to relieve fellow mushers in their mission.
A new antibiotic is announced. As reported in the magazine Science, Charles Pfizer & Co. discovered and produced the antibiotic Terramycin after researching thousands of soil samples. It is discovered in Indiana. January 27th Celebrated Birthdays
Longer-running observances that include this date.
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