Recognition of the value and enjoyment of collecting vintage and antique dolls houses as a hobby is due largely to the publications of two experts, Vivien Greene (1904-2003) in the UK, and Flora Gill Jacobs (1918-2006) in the US. Vivien Greene's first book, English Dolls' Houses of the 18th and 19th Centuries, was published in 1955; in the same year, an exhibition of period dolls houses from several countries was held in London. Flora Gill Jacobs' first book, A History of Dolls’ Houses, was published in 1953. Both collectors opened museums dedicated to dolls houses, the Rotunda (1962-1998) in Oxford, England, and the Washington Dolls’ House & Toy Museum (1975-2004), in Washington D.C., US.