A watercolour painting by one of Britain's best-loved artists has returned to the location where it was originally painted.

The last and greatest work by Edward Burne-Jones, The Sleep of Arthur in Avalon (1881-1898), will return to the UK from Puerto Rico for the first time in forty years when it goes on display as part of the major re-hang of the BP British Art Displays at Tate Britain.

Bolsas y Mercados Españoles (BME) and FTSE Group (FTSE), the award-winning global index provider, today launch the FTSE4Good IBEX, a new responsible investment index made up of companies listed on the BME that demonstrate good practice in corporate social responsibility.

In the first commission to use the iconic river façade of Tate Modern, the gallery will present the work of six internationally acclaimed artists, whose work is intricately linked to the urban environment. Street Art at Tate Modern, sponsored by Nissan QASHQAI, opens on 23 May and is the first major public museum display of Street Art in London.

When Sir Colin Davis was asked to choose a composer to write a new work to celebrate his 80th birthday, he selected James MacMillan, one of the most-performed contemporary composers of his generation.

The number of electronic equity trades carried out on the London Stock Exchange and Borsa Italiana during March 2008 averaged 1.1 million per day, an increase of 33 per cent on March 2007, which at the time was a record month on both exchanges' markets. A total of 21.2 million equity trades were carried out during the month.

The Merry Widow was a huge success when premiered in Vienna in 1905 and remains one of the most enduringly popular of all operettas and was later filmed by Metro-Goldwyn-Meyer (1934) starring Jeanette MacDonald in the title role opposite Maurice Chevalier as Count Danilo. Lehár's tale of romance, passion, high society and amorous intrigue, The Merry Widow is set in the heady champagne days of decadent, nineteenth-century Paris.

A survey of over 2000 people has found that the London Clock Tower, containing the famous bell Big Ben, is the most popular landmark in the United Kingdom.

The Lure of the East: British Orientalist Painting, opening at Tate Britain on 4 June, is the first exhibition to survey the history of British painters' representations of the Middle East from the seventeenth to the early twentieth centuries. It will explore the great range of artistic responses to the peoples, cities and landscapes of the regions lying just across the Mediterranean from Europe.

The Science Museum announced details of a new exhibition which takes an investigative look at aviation and its impact on climate change.

Metropolitan Police to commission one of the largest Automated Personal Location Systems in the world

Unless otherwise stated, the following commentary refers to the 11 months ended 29 February 2008 and, where appropriate, to the corresponding period last year. Figures for Borsa Italiana refer to the same time periods although the business has only been part of London Stock Exchange Group since 1 October 2007.