Same can be said, perhaps more accurately, about the wheelbarrow. From https://www.penguinrandomhouse.ca/books/312366/the-knowledge-by-lewis-dartnell/9780143127

Same can be said, perhaps more accurately, about the wheelbarrow. From https://www.penguinrandomhouse.ca/books/312366/the-knowledge-by-lewis-dartnell/9780143127048/excerpt https://www.penguinrandomhouse.ca/books/312366/the-knowledge... : > The wheelbarrow, for instance, could have occurred centuries before it actually did—if only someone had thought of it. This may seem like a trivial example, combining the operating principles of the wheel and the lever, but it represents an enormous labor saver, and it didn’t appear in Europe until millennia after the wheel (the first depiction of a wheelbarrow appears in an English manuscript written about 1250 AD).