28 February: National Science Day (India)

National Science Day is celebrated in India on 28 February each year to mark the discovery of the "Raman Effect" by Indian physicist Sir Chandrasekhara Venkata Raman on 28 February 1928.

28th February, 1928 was a great day for India when an invention in the field of Indian science was completed by the famous Indian physicist, Sir C.V. Raman. He was a Tamil Brahmin and first scientist from India who made such a breakthrough. 

To commemorate and honor this event, the Indian Government designated it as National Science Day in the year 1986. 

The above definitive stamp was issued in the year 2008 by India

27th February: International Polar Bear Day

International Polar Bear Day is celebrated on 27th February. Polar bears are the world’s largest carnivore. There is a risk of extinction of polar bears.

International polar bear day is a day of action to reduce carbon emissions because of carbon emission the glaciers are melting and also these bears are losing their habitat. 

This stamp was issued by India in the year 2009 

23rd February, World Rotary Day

Rotary International, founded on February 23, 1905, in Chicago, Illinois USA, is the world’s first and one of the largest non-profit

Humanitarian service organizations.

Meetings were held each week at members’ offices, in ‘rotation’, hence the name Rotary.  

The above stamp was issued on 23rd February, 2005 commemorating the Rotary International Century of Service

22nd February: World Thinking Day (WTD)

World Thinking Day is a day of friendship, advocacy and fundraising for 10 million Girl Guides and Girl Scouts around the world.

Thinking Day was first created in 1926 at the fourth Girl Guide/Girl Scout International Conference. Conference attendees decided that there should be a special day for Girl Scouts and Girl Guides from around the world to "think" of each other and give thanks and appreciation to their "sister" Girl Scouts. The delegates chose February 22 as the date for Thinking Day because it was the mutual birthday of Lord Baden-Powell, founder of the Boy Scout movement, and his wife, Olave, who served as World Chief Guide.

In 1932, at the seventh World Conference, held in Poland, a Belgian delegate suggested that since birthdays usually involve presents, girls could show their appreciation and friendship on Thinking Day not only by extending warm wishes but by offering a voluntary contribution to the World Association. This is how the World Association's Thinking Day Fund began. The fund helps offer Girl Guiding/Girl Scouting to more girls and young women worldwide. 

Above, you can see an Indian stamp issued in 1970 for the Diamond jubilee of Girl Guide Movement.