Karen Chernick

A custom sign planted in MoMA's sculpture garden in 1943 said "Please Touch," signaling to visitors at Alexander Calder's retrospective that it was okay to handle the kinetic sculptures and mobiles.
A celebrated painter in her own time, Thérèse Schwartze later fell into obscurity. Now she is being rediscovered.
While the struggling Vincent van Gogh was just trying to pay the rent, he unwittingly shaped his work and art history.
Traveling writer Maxime du Camp changed photographic history when he grew tired of sketching the sights.
In the 1960s, a different Robert De Niro was making a name for himself in the New York art scene.
Taking the famed movement home with them from France, these Canadian artists created an Impressionism all their own.
Some of art history's greats have used everything from kitchen cloths to board games when they couldn’t get canvas or were short on funds.
When Italian university student Piergiorgio Castellani booked his winter-break holiday in New York in 1988, he expected to see major artworks in museums–not major living artists walking nonchalantly…