"The two decades following the end of the late-nineteenth century economic depression were the first great age of globalization; the world economy was truly becoming integrated in just the ways Keynes suggested. For precisely this reason, the scale of the collapse during and after the First World War and the rate at which economies contracted between the wars is difficult for us to appreciate even now. Passports were introduced; the gold standard returned (in 1925 in the British case, reinstated by Chancellor of the Exchequer Winston Churchill over Keynes’s objections); currencies collapsed; trade declined."