September 11 (or 9/11)
World celebrates "World Brotherhood Day" on the 11th September every year, the date Swami Vivekananda delivered his famous speech in Chicago.
January 18
In present history, specific events from WW2 are still celebrated. Some of these events include Pearl Harbor Day, D-Day, Victory in Europe Day and Victory in Japan Day.
There is no Y day celebrated or commemorated. You are probably referring to V E Day or V J Day which are the days we celebrate victory in Europe and Japan. Those days are celebrated May 8th for the 5/8/1945 VE Day and VJ day is celebrated August 15 for the 8/15/1945 victory day.
Waitangi Day is celebrated on February 6.
Veterans Day began celebration after World War I along with holidays such as Armistice Day and Remembrance Day. Hostilities during World War I ended at the 11th hour of the 11th day in the 11th month of 1918. It is a federal holiday an shows respect and remembrance for those who have served in the United States Armed Forces.
15th March is celebrated as world customer day.
World Environment Day is celebrated on June 5th every year.
World no tobacco day is celebrated on 31st of May.
World asthma day is celebrated may, 4.
World Science Day is celebrated on 28th February.
World Peace Day is celebrated on the 21st of September.
world food day is celebrated on 16th of october every year.
World Daughter's Day is celebrated on 23rd September.
It is celebrated around the world.
Yes harmony day is celebrated all around the world
It is celebrated on 9th february...!!
The World TB Days is celebrated on 24th March.