The British Museum turns 250 years old this week. “In its lifetime, the museum has acquired some of the most important archaeological objects, including the Rosetta Stone and the world’s oldest glass – Egyptian, dating from 1460 BC. And as the home of the British Library, which grew out of the royal library and now receives a copy of every book published in the UK, it has nourished the minds of Charles Dickens, Karl Marx and Lenin, to name a few.”