Black, white sheep usually run separately Mr Moses said it was crucial for black and white flocks to be run separately due to the potential of black fibres getting into the white wool.

In February, the Smithsonian released nearly 3 million historical photos into the public domain from their 19 museums, as well as research centers, libraries, archives, and the National Zoo.

Dotted with a white sheep pattern all over, ... Diana, Princess of Wales, is seen wearing her "Black Sheep" wool jumper to Windsor Polo in June of 1981. Tim Graham Photo Library via Getty Images.

A red-and-white cotton sweater dotted with images of sheep and worn by Lady Diana Spencer when she attended one of Prince Charles ’ summer polo matches in 1981 is coming to auction in August at ...

She wore the sweater, which features dozens of white sheep and one black sheep on the front, several times leading the press to speculate as to whether Diana herself felt like a “black sheep ...