guardian.co.uk,
1978: Mohamed is born in Ethiopia on 24 July.
1994: He arrives in the UK, aged 16, with his family, who seek asylum because of their opposition to the then-government of Ethiopia. This is refused.
2000: Mohamed is given exceptional leave to remain in the UK for a further four years. While living in London, he works as a cleaner and studies electrical engineering.
2001: He converts to Islam before travelling to Pakistan and then Afghanistan. There, the US alleges, he attends terrorism training camps and hears lectures by Osama bin Laden. The US charges claim Mohamed went on a bomb-making course and plotted terrorism attacks in Pakistan. His lawyers insist any case was obtained by torture.
April 2002: He is arrested at Karachi airport en route to the UK. Mohamed says he was tortured in Pakistan, in whose custody he was visited by a British intelligence agent. He then says he was taken to Morocco and held for 18 months, during which he suffered more torture.
September 2004: Mohamed arrives at the US prison in Guantánamo Bay, Cuba. He claims that he was transferred first to a CIA facility in Kabul. Click on 'Read More.'
2008
May: Mohamed is formally charged by the Pentagon with conspiring to commit terrorism and war crimes, for which he faces a possible death penalty. Later that month he writes to Gordon Brown asking for assistance to bring him back to the UK. He writes: "I have been held without trial by the US for six years, one month and 12 days. That is 2,234 days (very long days and often longer nights). Of this, about 550 days were in a torture chamber in Morocco and about 150 in the 'Dark Prison' in Kabul. Still there is no end in sight, no prospect of a fair trial."
4 June: The US charges Mohamed with allegedly plotting to blow up apartment buildings in America with radioactive "dirty bombs".
21 August: Mohamed wins a high court attempt to force British security services to reveal secret information on him, including the alleged torture.
27 August: The US state department warns that the disclosure of information connected to Mohamed's alleged torture would cause "serious and lasting damage" to security relations between it and the UK.
21 October: The US government drops war crimes charges against Mohamed and four other Guantánamo detainees. On the same day, the high court in London calls the US refusal to disclose evidence about torture "deeply disturbing".
30 October: It is revealed that the home secretary, Jacqui Smith, has asked the attorney general to investigate possible "criminal wrongdoing" by the MI5 and the CIA over its treatment of Mohamed.
2009
5 January: Mohamed reportedly begins a hunger strike, which lasts until 11 February. Near the end of the protest his lawyers warn that he is close to death.
20 January: Barack Obama becomes US president, and immediately begins moves to close down Guantánamo.
4 February: The high court rules that evidence connected to Mohamed's alleged torture at Guantánamo must remain secret because of US threats about a possible end to intelligence co-operation if the disclosures are made. The following day the foreign secretary, David Miliband, denies the US made such a threat.
15 February: UK officials, among them a doctor, visit Mohamed to see whether he is in a fit state to return home.
20 February: Miliband announces that the US and UK governments have reached a deal under which Mohamed can return to Britain soon.
23 February: Mohamed is flown back to the UK.
