यह किसने कहा था कि 'विश्व इतिहास महान संस्कृतियों का खेल है'?

Which of the following historians was a member of the British delegation to the Paris Peace Conference following World War I?

Arnold J. Toynbee initially identified 21 main civilizations in his study 'A Study of History', which was later expanded to include how many civilizations?