sentences:  In 1973, Edna St. Vincent Millay's sister Norma created the Millay Colony for the Arts at the historic site of Steepletop in Austerlitz.The Provincetown art colony came into being when Charles Webster Hawthorne opened his Cape Cod School of Art there in the summer of 1899.The art school attracted other artists, and expanded the colony, which led to the foundation of the Provincetown Art Association.