But Castelli's anxiety to corral the spread of artistic novelties, including the newfangled medium of video, grew frantic.
Important trade fairs in growing cities such as Paris, Nancy, Strasbourg, and Lyon enabled the spread of artistic ideas and cultural trends to and from other regions, placing France at the centre of a nascent European high culture that would reach its greatest expression in the Renaissance.
The show is a valuable chance to contemplate the spread of an artistic style, and the ratio of originality and talent as well as diligence and ambition that makes an artist "canon worthy".
When word spread of Moorman's artistic adventures, her Arkansas family was far from pleased.
The nearly 700 works, often small, range around a quarter of the globe and through nearly 15 centuries, tracing a network that reflects the spread of religion, warfare, trade, artistic techniques and political domination.
The islands that at the present day compose Indonesia probably once shared in the complex Neolithic heritage of artistic tradition, which also spread farther, into the islands of Melanesia and Micronesia.
The main force behind the rapid spread of these shows is not artistic but financial.
Comparative works by Lorenzo di Credi, Domenico Ghirlandaio, Francesco di Simone Ferrucci, Biagio d'Antonio, and Jacopo del Sellaio attest to the spread of Verrocchio's influence throughout Florentine artistic circles at the end of the 15th century.
To the credit of producers and artistic directors, the spread of premium tickets has, in many cases, been offset by a greater availability of cheaper or on-the-day seats, with the result that a sort of progressive taxation system has been created, with theatre-goers encouraged to pay in accordance with their means.
And Ms. Wright's current tour, which stops in New York on Tuesday, serves a dual purpose: spreading the gospel of her interpretive gift and bolstering a spirit of artistic growth.
And together with Schleicher, Haeckel would be responsible for the artistic creations and popular spread of "Stammbaum" iconography to depict evolutionary descent with modification by means of natural selection.
