1. Highly decorated, with trefoil and diamond designs, "their condition is remarkably well–preserved", Christie‘s said in a statement.

2. It will supplement the existing three–cornered trefoil symbol which "has no intuitive meaning and little recognition beyond those educated in its significance", said the International Atomic Energy Agency in a statement.

3. In the newly unveiled plans, the slightly shorter, 420,000–square–meter tower is a striking design comprising three blade–like structures arranged in a trefoil–like plan around a central core and tapering sharply toward the top, with part of the steel structure exposed on the outside like an exoskeleton.

4. Scientists at the Institute of Grassland and Environmental Research in Aberystwyth say that feeding cattle grass with high natural levels of sugar, white clover and the leafy plant birdsfoot trefoil, would make their diet more digestible and cut down their methane production.

5. I would recommend a cropped pea coat, offset with a strong, graphic, checked shirt." 3' Herbert Hainer Chief executive, chairman of executive board, Adidas Every wardrobe boasts some Adidas – whether it‘s the iconic trefoil, a three–stripe track pant, or Stella McCartney for Adidas, they have us covered. 40 Tinker Hatfield VP, innovation, design and special projects, Nike Hatfield designed the Air Max, the Air Jordan and the first cross–training shoe, and his influence is more apparent than ever as sports shoes become increasingly technical and fashion–conscious. 41 Hedi Slimane Designer, Dior Homme The man who made skinny jeans fashionable – yes, he‘s Pete Doherty‘s favourite designer – and the reason tailored suiting is coming back now. 42 Mario Testino Photographer Image–maker extraordinaire.