A guide to selected events in the political calendar, following the announcement by UK Prime Minister Tony Blair that he will step down within the next 12 months.
9 September - Mr Blair makes a speech to mark the 10th anniversary of left-wing think-tank Progress.
12 September - The Trades Union Congress is held in Brighton, with an address by Mr Blair.
20-22 September - Mr Blair attends the annual gathering in New York of the Clinton Global Initiative, set up by former US president Bill Clinton to tackle economic, social and health inefficiencies around the world.
21 September - Liberal Democrat leader Sir Menzies Campbell addresses his party's conference in Brighton.
25 September - The annual Labour Party conference, which is being held in Manchester, hears from Chancellor Gordon Brown.
26 September - Mr Blair makes his own keynote speech at the Labour conference.
Also in September - British forces are due to hand over power to the Iraqi authorities in a second province, Dhi Qar.
4 October - David Cameron gives his leader's address at the Conservative party conference in Bournemouth.
9 October - Parliamentary business resumes in the Commons and the Lords.
Also in the autumn - MPs vote on whether to replace Britain's nuclear deterrent (Trident).
The Metropolitan Police is expected to announce the findings of its investigation into loans-for-peerages allegations.
15 November - The state opening of Parliament, including the Queen's speech outlining the government's agenda for the coming year.
March - Expected to bring Mr Brown's 11th annual Budget.
2 May - The 10th anniversary of Mr Blair's election in a landslide victory in 1997.
3 May - Elections for parliament and councils in Scotland, the Welsh assembly and most local authorities in England (but not London, where elections were held in May 2006).
31 May - The resignation date being planned for Mr Blair, according to The Sun. An "eight-week leadership contest" would start immediately, the newspaper has claimed, "although disastrous results in the Scottish and Welsh elections could bring the resignation forward by one week".
June - Likely gathering of world leaders at a G8 Summit in Germany, which has the G8 presidency in 2007.
July - The government announces its Comprehensive Spending Review, setting out the government's priorities for the remainder of its term in power.
26 July - The Sun claimed that this is the day when Tony Blair will stand down after the leadership election.
7 September - The first anniversary of Mr Blair's announcement that he would stand down within a year.
September - Labour's next conference. Party rules mean that the leader and deputy leader must be formally confirmed at the annual event.
January - Preparations for ID cards are due to be stepped up when personal details of passport applicants begin to be added to the National Identity Database.
27 November - Mr Blair would now have been in power for longer than Lady Thatcher, who served for 11 years, five months and 24 days from 1979 to 1990.
3 June - The latest possible date for the prime minister to hold a general election.