Why was impressionism such a revolutionary art?

Question

Aside from style and subject matter what else made impressionism so revolutionary?

Answer 1

it captured moments of history in visual detail to give you a glimpse of emotion and sense of what was happening and what the painting is beholding

revolution is related to this type of art because of the historical events in france, etc

Answer 2

Impressionism broke with the traditional 'salon' style of painting by apttempting to capture a moment in time as experienced by the viewer. The way the light hit the water, the shadows at that time of day, could/would never be repeated. The 'salon'style was more pictoral of frozen moments in time. In impressionist paintings, movement is essential, bringing life to previously static subjects.