how were aerial photos possible as early as 1860’s in areas where they had no hills or mountains overlooking the city?

Question

how were aerial photos possible as early as 1860’s in areas where they had no hills or mountains overlooking the city?

In: Technology

Answer 1

Military kites were a thing. By 1893 they were used in the Boer Wars to lift human observers aloft. During the American Civil War they were used perhaps to drop propaganda’