World Thinking Day, formerly Thinking Day, is celebrated annually on 22 February by all Girl Guides and Girl Scouts.It is also celebrated by Scout and Guide organizations around the world.It is a day when they think about their "sisters" (and "brothers") in all the countries of the world, the meaning of Guiding, and its global impact.
Most recently, World Association of Girl Guides and Girl Scouts has selected an important international issue as the theme for each year's World Thinking Day, and selected a focus country from each of their five world regions. Girl Guides and Girl Scouts use these as an opportunity to study and appreciate other countries and cultures, and equally increase awareness and sensitivity on global concerns. Donations are collected for the Thinking Day Fund which supports projects to help Girl Guides and Scouts around the world.
22 February was chosen as it was the birthday of Scouting and Guiding founder Lord Robert Baden-Powell and of Lady Olave Baden-Powell, his wife and World Chief Guide. Other Scouts celebrate it as B.-P. Day or Founders' Day.
A Special cover was released on 22nd February 2022 to celebrate the birth anniversary of both the founder of the Scouts and Guides Movement Robert Stephenson Smyth Baden Powell and his wife Olave Baden Powell.
Source : Wikipedia and https://mbstamps.blogspot.com/