World Hello Day 21 Nov 2025

World Hello Day

This harbour seal, photographed at Robert Moses State Park on Long Island, New York, seems to be onto something—spreading good vibes, one wave at a time. That"s exactly the spirit of World Hello Day, celebrated every November 21. This cheerful observance began in 1973 when two American brothers, Brian and Michael McCormack, launched it as a peaceful response to global tensions. They mailed 1,360 letters in seven languages to world leaders, inviting them to join the first celebration. Their message was simple yet powerful: personal communication can help preserve peace. Today, people in more than 180 countries participate.

© Vicki Jauron, Babylon and Beyond Photography/Getty Images

palette

Today in History

Kick-off in Qatar
21 Nov 2023Grey seal pup
21 Nov 2024Lion cubs, South Africa

More Desktop Wallpapers:

23 Nov 2023Teide National Park, Tenerife, Canary Islands, Spain
Purple mountain majesties
10 Jul 2025Independence Day of the Bahamas
6 Dec 2024Finnish Independence Day
Stop and smell the Sakura
A touch of magic
30 Jul 2024Friendship Day
31 Jul 2025Kalalau Beach on the Nā Pali Coast, Kauai, Hawaii, United States
23 Sep 2023Autumnal equinox
9 Apr 2024Skagit Valley Tulip Festival
Mountains of sand
Want to hang about?
Creating a better world
Turquoise delight
10 May 2025Minnesota State Capitol, St Paul, Minnesota, United States
28 Mar 2024Cherry blossoms in Shanghai, China
International Mountain Day
20 Jul 2024International Moon Day
27 Dec 2024Lake Bled, Slovenia
8 Dec 2024Notre-Dame reopens
Spanning the soft sunlight
World Population Day
Spring is coming
Piecing together a better tomorrow
5 Apr 2025Grand National
3 Jun 2025World Bicycle Day
A temple to treasure
2 Jan 2026Aerial view of Venice, Italy
30 Mar 2024Brown-throated three-toed sloth
28 Jun 2024Stonewall uprising anniversary