06 August - Hiroshima, Japan is devastated atomic bomb in 1945

On this day - 06 August 1945 – World War II: Hiroshima, Japan is devastated when the atomic bomb "Little Boy" is dropped by the United States B-29 Enola Gay. Around 70,000 people are killed instantly, and some tens of thousands die in subsequent years from burns and radiation poisoning.

The USPS withdrew this stamp from a 1995 series marking the end of World War II after Japanese and American protests.

06 August - Russian Railway Troops Day

Railway Troops of the Russian Armed Forces are a railway troops service in the Logistical Support of the Russian Armed Forces. They are involved in ensuring the defense of Russia. Railway Troops perform the tasks of rail services (preparation, construction, reconstruction and protection of the objects of railways). It is the oldest such force in the world, established in 1851, as a unit in the engineering corps of the Imperial Russian Army. The professional holiday of the Troops is celebrated on August 6.

06 August - Father Jerome D'Souza Birth Anniversary

Father Jerome D'Souza, SJ (6 August 1897, Mangalore, South Canara, British India – 12 August 1977, Madras, India) was an Indian Jesuit priest, educationist, writer and member of the Indian Constituent assembly (1946–50).

In 1997, the Indian government issued a stamp to commemorate his birth centenary.