Explanation

World Photography Day is celebrated every year on August 19.

It honors the art, science, history, and impact of photography.

The day commemorates the Daguerreotype, an early photographic process developed by Louis Daguerre and announced publicly in 1839.

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Explanation

World Biofuel Day is observed every year on August 10th to raise awareness about the importance of non-fossil fuels as a cleaner alternative to traditional fossil fuels.

It honors Sir Rudolf Diesel’s historic 1893 experiment running a mechanical engine on peanut oil.

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Explanation

International Lefthanders Day is observed annually on 13 August to celebrate the uniqueness of left-handed people and raise awareness of the challenges they may face in a predominantly right-handed world.

The day was established in 1976 by the Left-Handers Club.

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Explanation

• The World Organ Donation Day is observed globally on 13th August every year.
• This day is celebrated to raise awareness about the importance of organ donation and motivate people to donate organs after death. 

Explanation

• United Nations observes 21st August every year as International Day of Remembrance and Tribute to the Victims of Terrorism. The day is observed to pay tribute to the individuals across the globe who have been attacked, injured, traumatized or lost their lives because of terrorist attacks.