I want to know the answer to the following question:
When was Britain called the "workshop of the world"?
All the background I'm provided with is that "Unchallenged at sea, British dominance was later described as Pax Britannica ("British Peace"), a period of relative peace in Europe and the world (1815–1914) during which the British Empire became the global hegemon and adopted the role of global policeman.". Is that enough to answer the question?