Text 1
Many art historians credit the rise of Impressionism in the 1870s to a modest invention: the collapsible metal paint tube, patented in 1841, which allowed painters to carry premixed oil paints outdoors and work directly from nature. Without the tube, these historians argue, painting outdoors on the scale the Impressionists practiced would have been impractical, and the movement as we know it could not have existed.

Text 2
The paint tube certainly made outdoor painting easier, but artists had painted outdoors before 1841, carrying paint in small bladders made from animal membranes, and many Impressionist canvases begun outdoors were in fact finished in the studio. What set the Impressionists apart was less where they painted than how: a commitment to recording fleeting effects of light, which led them to adopt broken brushwork and brighter colors whatever the setting.