27 January is a day of diverse observances across the world. From solemn remembrances to delightful celebrations, here’s a detailed list of notable events marked on this day.
27 January is celebrated as:
Day | Country/ Region | Started By |
International Holocaust Remembrance Day | International | United Nations |
National Chocolate Cake Day | United States | Unknown (popular tradition) |
Community Manager Appreciation Day | International | Jeremiah Owyang (Social Media Expert) |
Thomas Crapper Day | United Kingdom | Plumbers’ Associations and Enthusiasts |
National Geographic Day | United States | National Geographic Society |
Complete Answer:
International Holocaust Remembrance Day

Image Source: www.cipdh.gob.ar
Observed globally, this day honours the memory of six million Jews and millions of others who were victims of the Holocaust during World War II. It was established by the United Nations in 2005 to commemorate the liberation of Auschwitz-Birkenau on 27 January 1945. The day emphasizes the importance of education and collective action to combat hate and intolerance.
National Chocolate Cake Day
In the United States, 27 January is a treat for dessert lovers. This day celebrates the rich, velvety goodness of chocolate cake in all its forms. Though the origins of this celebration are unclear, it has become a popular tradition embraced by bakeries, chocolatiers, and home bakers alike.
Community Manager Appreciation Day

Image Source: YouTube
Started in 2010 by Jeremiah Owyang, this international observance highlights the vital role community managers play in fostering online engagement and building meaningful connections. Companies and communities use this day to appreciate the efforts of those who bring people together in the digital space.
Thomas Crapper Day

Image Source: Smithsonian Magazine
Celebrated in the United Kingdom, this day pays tribute to Thomas Crapper, a Victorian-era plumber whose advancements in sanitation revolutionized plumbing. Although he did not invent the flush toilet, his contributions to improving and popularizing sanitary fixtures earned him recognition in plumbing history.

This day honours the founding of the National Geographic Society on 27 January 1888. Known for its dedication to exploring and documenting the world’s cultures, wildlife, and landscapes, the Society continues to inspire millions through its captivating stories, documentaries, and photographs.
Fun Facts
- The term “crapper” as slang for toilets became popular because of Thomas Crapper’s name being branded on plumbing products.
- National Geographic’s first magazine cover in 1888 was a simple brown paper cover!
- Jeremiah Owyang created Community Manager Appreciation Day to acknowledge the growing role of social media professionals.
- Chocolate cake as we know it became popular in the 19th century when cocoa powder became widely available.
27 January is a day of rich significance, blending historical remembrance with celebrations of culinary delights, professional contributions, and cultural exploration. Each event serves as a reminder of the diverse ways humanity connects, learns, and commemorates.
Stay Curious