But, as the mess in London has shown, differing interests and nationalism makes merging them hard.
She had taken part in the London Marathon in 1998 as a fun runner, but in April this year she knocked an hour off her previous time, finishing three minutes inside the Olympic qualifying time as the top British woman runner.
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Some of them are still taking place in traditional places such as London and Paris, but one of the most successful has been an event in Shanghai targeting organizations across China.
But as the recent controversy at University College in London showed earlier this academic year, there are considerable tensions and debates among Muslims about the degree to which science challenges fundamental tenets of Islam.
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But in 1983 he threatened to leave to seek a career as an investment banker in London.
Banahan joined Bath in 2006 from London Irish as a lock forward but was converted into a winger and has scored 24 tries in 62 appearances.
He did better in 2002, as candidate for mayor of Hackney, in east London, but still came third.
The firm said it opted not to sound the alarm at every junction as it would have proved counterproductive, but said that it planned to add to the initial 100 locations in London as well as expanding to other cities.
Esher plan to appeal the decision but as it stands Mounts Bay will face London Scottish in round five.
Even on the train home from London where I was on 3G for the majority of the trip (but with 4G as I left London and arrived home in Edinburgh) EE was consistent and maintained coverage.
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The aim of most, judging by the professions of the new generation, is to make money, often in the City of London, sometimes in the media, but not primarily to take up public office as their ancestors did almost by right.
Middlesex's fourth Championship victory of the season keeps them in seventh but, in the private battle to end the season as London's top club, it increases their advantage over neighbours Surrey to 19 points.
But it punctured the cheery Olympic bubble, as there were several players in London directly or tangentially involved.
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But as CitExpress contracts end in Aberdeen, a new flight from Glasgow to London City airport will be launched in April 2003.
That is a very important symbol for us to show that police don't only police the lesbian, gay and bisexual community in London, but that they are part of it as well.
"We are working to get taxis back on the road as quickly as possible but clearly, with the large number of vehicles affected in London and also in the regions, this work will take several weeks to complete, " Mr Hammond said.
Small-minded Edinburgh lawyers who disapproved of his campaigns might blackball him from their golf club, and did, but their slightly more sophisticated counterparts in London could hardly dismiss him as a wild leftie: they had known him in the Bullingdon Club and shared his views on hunting.
But plans for flights to resume at airports in Northern Ireland and as far south as London look doubtful.
But the Bulls number nine grins as he tells me that when he is back in London very few people recognize him.
According to Byng, Europe's economic headwinds create challenges, but ones which are offset in part by the popularity of London and Paris as travel destinations.
The BRC acknowledged this, but said that the net effect of the Games was minimal as "lower footfall in London was offset by a better performance in the rest of the country".
Mr Browner nicely retells, for instance, the cautionary tale of Lady Ottoline Morrell, a well-meaning but slightly dim toff who thought she had found her role in life as hostess to London's literary smart set.
After university, Middleton worked in London as an accessories buyer for the British clothing chain Jigsaw but left the company in late 2007.
But the mood was buoyant and bright at Blackheath Park in south-east London as the runners prepared to begin the long haul to the finish line near Buckingham Palace.
He was seen as backing a number of conservative candidates through his outlets in London, but then surprisingly cozying up to Prime Minister Blair there when that became expedient.
Fifteen years ago Frankfurt aspired to become a global financial centre, but these days German financial giants such as Deutsche Bank and Allianz do much more business in London than in Frankfurt.
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Yes, we may live in a highly sophisticated, automated, supermarket area such as London but the food that we eat is entirely dependent we believe upon the goodwill and the nature of God.
She has seen the show mainly in London, but also at Bristol, Birmingham, Edinburgh, Manchester and as far afield as Sweden and New York.
Arsenal trailed its North London rival by as many as seven points in late January, but an unbeaten run of 10 games to finish the season erased the gap.
Wenger may take heart from the fact that Arsenal were not swept aside in the manner they were against Chelsea last season, although there were moments of slackness at the back, but there was no consolation in a familiar scoreline as they were once again beaten by their fierce London rivals.
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