A photograph taken from an aircraft or high altitude, used for mapping, surveillance, or scientific documentation.
From Greek 'aero-' (air) + 'photo' (light/picture). This term became standard in military and cartographic circles during World War I when aerial reconnaissance photography began.
Aerial photography revolutionized warfare and mapmaking in WWI—pilots discovered they could spot enemy positions, trench systems, and supply lines from above, literally changing the bird's-eye view of battle.
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