Mark Rothko's (1903-1970) iconic abstract expressionist works are renowned. Yet, his nearly 3,000 smaller paper pieces are equally groundbreaking. Robert Costa explores these at the National Gallery of Art in Washington, D.C. https://cbsn.ws/3V1gU4k | CBS Sunday Morning

"A painting is not about an experience. It is an experience." -Mark Rothko Born on this day in 1903, Mark Rothko was born Markus Rothkowitz. His family emigrated from Russia in 1913 and settled in Portland, Oregon. In 1923, Rothko moved to New York where he discovered his love of painting. After a long period of stylistic experimentation, Rothko was prompted toward abstraction by the arrival of European avant-gardists during World War II, ultimately resulting in his signature works, consisting o