Source: BBC News

http://news.bbc.co.uk/2/hi/south_asia/3609182.stm

On August 29, 2004 the BBC News reported, "Sikhs from all over the world have begun arriving in the holy city of Amritsar, northern India, to commemorate the 400th year of the Sikh holy book, the Guru Granth Sahib, on 1 September. The holiest Sikh shrine, the Golden Temple, will be the centre of celebrations that are expected to attract more than 4m visitors to Amritsar, in the northern state of Punjab. There is a distinct air of festivity in Amritsar's Old City, which surrounds the Golden Temple, also known as Harimandir Sahib - a site as sacred to Sikhs as Mecca is to Muslims. 1 September 2004 has a special significance for the Sikhs. It was on this day, exactly 400 years ago, that the Guru Granth Sahib - a textual compilation of the teachings of the Sikh Gurus - was brought to the Golden Temple by the fifth Sikh guru, Guru Arjan Dev."