When rolled on a moist clay tablet, these engravings left low-relief markings, signifying that the object's owner authorized ...
They turned natural materials into tools, medicines, and systems that quietly underpin much of today's technology and culture ...
Douglas Gunn Sharp, founder of Edinburgh 's Innis & Gunn brewery, will open his precious bottle of Allsopp's Arctic Ale - after splashing out £3,000 for it.