The British Empire had just defeated the Germans in their naval race, the Russians recently lost to the Japanese in the Japanese-Russian war of 1904-1905 and the Ottoman Empire by this point was known as the sick man of Europe. Britain having an early lead in the Industrial Revolution due to the wit and creativity of British inventors. London was seen as the centre of the world.
Countries/Empires by GDP in 1913:
1. British Empire: 36.54% of world GDP
United States: 18.93% of world GDP
China: 8.6% of world GDP
German Empire: 8.6% of world GDP
Russian Empire: 8.5% of world GDP
Countries/Empires by population in 1907:
1. Qing China: 419 million
2. British Empire: 391 million
3. Russian Empire: 172 million
4. United States: 96 million
5. French Empire: 80 million
6. German Empire: 78 million
7. Dutch Empire: 51 million
8. Austria-Hungary: 50 million
9. Japanese Empire: 45 million
10. Italian Empire: 35 million
11. Ottoman Empire: 21.8 million
12. Spanish Empire: 21.35 million