League of Nations approves British mandate in Iraq, prompting nationwide revolt.
1921
Britain appoints Feisal, son of Hussein Bin Ali, the Sherif of Mecca, as king.
1932
Mandate ends, Iraq becomes independent. Britain retains military bases.
1941
Britain re-occupies Iraq after pro-Axis coup during Second World War.
1958
The monarchy is overthrown in a left-wing military coup led by Abd-al-Karim Qasim. Iraq leaves the pro-British Baghdad Pact.
1963
Prime Minister Qasim is ousted in a coup led by the pan-Arab Baath Party.
1963
The Baathist government is overthrown, but seizes power again five years later
1972
Iraq nationalises the Iraq Petroleum Company.
1974
Iraq grants limited autonomy to Kurdish region but plans are never realised
1979
Saddam Hussein takes over from President Al-Bakr.
1980-1988
Iran-Iraq war results in stalemate.
1988 March
Iraq attacks Kurdish town of Halabjah with poison gas, killing thousands.
1990
Iraq invades and annexes Kuwait, prompting what becomes known as the first Gulf War. A massive US-led military campaign forces Iraq to withdraw in February 1991.
1991 April
Iraq subjected to weapons inspection programme.
1991 Mid-March/early April
Southern Shia and northern Kurdish populations - encouraged by Iraq's defeat in Kuwait - rebel, prompting a brutal crackdown.
1992 August
A no-fly zone, which Iraqi planes are not allowed to enter, is set up in southern Iraq.
1995 April
UN allows partial resumption of Iraq's oil exports to buy food and medicine in an oil-for-food programme.
2002 September
US President George W Bush tells UN Iraq poses "grave and gathering danger".
2002 November
UN weapons inspectors return to Iraq backed by a UN resolution which threatens serious consequences if Iraq is in "material breach" of its terms.
2003 March
US-led invasion topples Saddam Hussein's government, marks start of years of violent conflict with different groups competing for power.
2003 July
US-appointed Governing Council meets for first time. Commander of US forces says his troops face low-intensity guerrilla-style war.
2003 December
Saddam Hussein captured in Tikrit.
2005 December
Iraqis vote for the first, full-term government and parliament since the US-led invasion.
2006 February onwards
A bomb attack on an important Shia shrine in Samarra unleashes a wave of sectarian violence in which hundreds of people are killed.
2006 December
Saddam Hussein is executed for crimes against humanity.
2007 December
Britain hands over security of Basra province to Iraqi forces, effectively marking the end of nearly five years of British control of southern Iraq.