Input: Article: RIBA Visiting Boards continue to assess courses for exemption from the RIBA's examinations in architecture. Under arrangements made in 2011 the validation criteria are jointly held by the RIBA and the Architects Registration Board, but unlike the ARB, the RIBA also validates courses outside the UK.

Now answer this question: When did the Royal Institute and ARB reach accord on a shared body of criteria?

Output: 2011

Input: Article: London has a diverse range of peoples and cultures, and more than 300 languages are spoken within Greater London. The Office for National Statistics estimated its mid-2014 population to be 8,538,689, the largest of any municipality in the European Union, and accounting for 12.5 percent of the UK population. London's urban area is the second most populous in the EU, after Paris, with 9,787,426 inhabitants according to the 2011 census. The city's metropolitan area is one of the most populous in Europe with 13,879,757 inhabitants,[note 4] while the Greater London Authority states the population of the city-region (covering a large part of the south east) as 22.7 million. London was the world's most populous city from around 1831 to 1925.

Now answer this question: What years was London considered the world's most populous city?

Output: 1831 to 1925

Input: Article: The rise of port cities saw the clustering of populations caused by the development of steamships and railroads. Urbanization increased from 1700 to 1922, with towns and cities growing. Improvements in health and sanitation made them more attractive to live and work in. Port cities like Salonica, in Greece, saw its population rise from 55,000 in 1800 to 160,000 in 1912 and Izmir which had a population of 150,000 in 1800 grew to 300,000 by 1914. Some regions conversely had population falls Belgrade saw its population drop from 25,000 to 8,000 mainly due to political strife.

Now answer this question: In what year did urbanization in the Ottoman empire begin to increase?

Output:
1700