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National days, ongoing national weeks and months, and global observances for January 27, 2026. Plus historical events and birthdays.
These observances run for a full week; this calendar day falls inside the week.
These observances last the full month; this date is part of that month-long celebration.
Showing the first 12 on this date; there are more month-long observances. See the full months list for January.
International and other global observances on this date (may include days, weeks, or months).
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
