During the Second World War, what was the code name of the atomic bomb dropped by the United States of America on the Japanese city of Hiroshima?

Introduction / Context:
At the end of the Second World War, the United States used nuclear weapons against the Japanese cities of Hiroshima and Nagasaki. Each bomb had a specific code name, and these names are frequently tested in history and general knowledge examinations. Knowing which name corresponds to which city helps students connect key events in wartime history with their factual details.

Given Data / Assumptions:

• The question asks specifically about the atomic bomb dropped on Hiroshima.

• Options include several similar sounding names and a none of these choice.

• Each bomb used in the war had a unique code name.

• The task is to pick the historically correct code name for the Hiroshima bomb.

Concept / Approach:
The atomic bomb dropped on Hiroshima on 6 August 1945 was code named Little Boy. It was a uranium based weapon. Two days later, another bomb, code named Fat Man, was dropped on Nagasaki. The names Little Fly and Little Devil are distractors designed to confuse students who may not recall the exact wording. Remembering the pairing of Hiroshima with Little Boy and Nagasaki with Fat Man is the key to answering correctly.

Step-by-Step Solution:
Step 1: Recall that the first atomic bombing in warfare took place over Hiroshima on 6 August 1945. Step 2: Remember that this bomb was code named Little Boy and used a uranium design. Step 3: Note that the second bombing, on Nagasaki on 9 August 1945, involved the bomb code named Fat Man. Step 4: Compare the given options and identify Little Boy as the one that matches the historical record for Hiroshima. Step 5: Recognise that the similar sounding names Little Fly and Little Devil have no basis in the actual naming of the bombs.

Verification / Alternative check:
Standard histories of the Second World War and many educational resources specify that the Hiroshima bomb was called Little Boy and the Nagasaki bomb was called Fat Man. Museum exhibits, documentaries, and memorial sites also use these names. No serious historical source refers to bombs named Little Fly or Little Devil, which confirms that Little Boy is the correct code name for the Hiroshima weapon.

Why Other Options Are Wrong:

• Little Fly is a distractor phrase that resembles the correct answer but does not appear in any official listing of bomb names from the war.

• Little Devil similarly has no historical connection to the naming of the nuclear weapons used in 1945.

• None of these is incorrect because Little Boy is indeed the correct name and is included among the options.

Common Pitfalls:
Students sometimes mix up the names of the two bombs or think that one of them was called Fat Boy, combining parts of the correct names. Others may vaguely remember a small related word like Little but not recall the full phrase. To reduce confusion, it is helpful to memorise the pair precisely: Little Boy for Hiroshima and Fat Man for Nagasaki.

Final Answer:
The atomic bomb dropped on Hiroshima was code named Little Boy.