Question: when was the first photograph taken in america

title: History of photography
text: Herbert Bowyer Berkeley experimented with his own version of collodion emulsions after Samman introduced the idea of adding dithionite to the pyrogallol developer . Berkeley discovered that with his own addition of sulfite , to absorb the sulfur dioxide given off by the chemical dithionite in the developer , that dithionite was not required in the developing process . In 1881 he published his discovery . Berkeley 's formula contained pyrogallol , sulfite and citric acid . Ammonia was added just before use to make the formula alkaline . The new formula was sold by the Platinotype Company in London as Sulpho - Pyrogallol Developer .