1991, 21 May: Gandhi killed, allegedly by an LTTE suicide bomber.
1993, 1 May: Premadasa killed by LTTE suicide cadres during a May Day rally in Colombo.
1995, January: Government of Chandrika Kumaratunge and LTTE agree to talks.
1995, April: Talks fail after the Tigers blow up two navy vessels.
1995, 2 December: Jaffna, the northern cultural and political nerve centre of the Tamils, falls under Sri Lanka army control.
1996, 31 January: Suicide bomb attack on the Central Bank building in the heart of Colombo kills more than 100 and injures 1,400.
1996, 24 July: Alleged LTTE bomb blast in a railway station in Dehiwela, south of Colombo, kills 70.
1996, 18 July: Army camp overrun by the LTTE near the northeastern town of Mullaitivu. More than 1,000 troops killed.
1998, 25 January: Suicide bomb attack on Sri Lanka’s holiest Buddhist shrine, Dhaladha Maligawa (Temple of the Tooth), in the central town of Kandy, kills 17 people.
1998, 26 September: Tigers overrun Kilinochchi army camp, killing more than 1,000 government soldiers.
1999, December: LTTE attempts to assassinate President Chandrika Bandaranaike Kumaratunge; he survives.
2000, April: LTTE recaptures Elephant Pass, inflicting heavy damage on the Sri Lankan forces during the operation Unceasing Waves III.
2001, July: An LTTE suicide attack on Bandaranaike International airport kills 14.
2002, 22 February: Ceasefire agreement, brokered by Norway, signed by Prime Minister Ranil Wickremesinghe and LTTE leader Prabhakaran.
2002, December: Government and LTTE agree to share power at peace talks in Norway.
2003 April: LTTE pulls out of talks after six rounds of negotiations, citing inadequate steps taken to rebuild war-hit areas.
2004, 3 March: LTTE eastern military head, Vinayagamurthi Muralitharan, alias Karuna Amman, splits from the LTTE.
2005, 7 February: LTTE political head for the eastern Districts of Batticaloa and Ampara, E. Kousalyan, killed with three others in Batticaloa town.
2005, 12 August: Foreign Minister Lakshman Kadirgamar killed by suspected LTTE snipers in Colombo.
2005, 4 December: The LTTE commences claymore and grenade attacks targeting the Sri Lankan troops in the Jaffna peninsula.
2006, 15 June: More than 60 civilians killed in claymore mine attack allegedly by LTTE, targeting a civilian bus in Kebithigollewa, nearly 200km from Colombo.
2006, 20 July: LTTE closes the sluice gates at Mavilaru, south of the eastern coastal town of Trincomalee. Clashes erupt as army launches operations to gain control and succeeds.
2007, 5 January: Bomb attacks on public transport begin in Nittambuwa, about 20km east of Colombo, killing six people. Several bombs target public transport in the following months. The government blames the LTTE for the attacks.
2007, March: LTTE carries out its first air raid on Katunayake air base, about 20km north of Colombo. The Tigers also conduct an air attack on 29 April during the Cricket World Cup Final. The attack targets two fuel-storage facilities on the outskirts of Colombo. The Tigers carry out at least nine air attacks before 20 February 2009.
2007, 15 January: Military captures Vakarai, a coastal town in Batticaloa District in the Eastern province.
2007, 11 July: military captures Thoppigala, the last of the LTTE strongholds in the east after 13 years, thereby regaining the entire eastern province from the LTTE.
2007, 2 November: LTTE political wing leader SP Tamilselvan killed in an air raid by the Sri Lankan Air Force.
2008, 2 January: The government says it will withdraw from ceasefire agreement and does so on 14 January and intensifies attacks on the Tigers. The LTTE, however, states it will stick to the agreement.
2008, September: All international humanitarian agencies and their foreign staff operating in the LTTE-controlled Kilinochchi and Mullaitivu districts are ordered by the government to relocate to Vavuniya.
2009, 2 January: Government troops capture Kilinochchi, de-facto capital of the LTTE, after 10 years.
2009, 25 January: Mullaithivu town captured by government troops.
2009, 12 February: Government declares a 12km-long “no fire zone” (NFZ) along the Mullaitivu western coast and calls on civilians to move into it for their own safety.
2009, 20 February: The LTTE conducts a suicide air attack in Colombo.
2008 March: Sri Lankan troops launch operations to regain areas in the Vanni from the western flank. The number of civilians in the NFZ continues to grow.
2009, 14 April: LTTE says it is ready for negotiations, but the government refuses the offer, insisting it should lay down arms.
2009, 20 April: Thousands of civilians trapped in the NFZ cross into government-controlled areas where they are screened and placed in camps. Government gives LTTE 24 hours to surrender.
2009, 22 April: Former LTTE media coordinator Velayutham Dayanidhi, alias Daya Master, and the translator of former LTTE political wing head SP Tamilselvan, Kumar Pancharathnam, alias George, surrender to the military.
2009, 26 April: The LTTE declares a unilateral ceasefire as government forces surround an ever-shrinking NFZ. The government rejects the declaration, calling it a “joke”. The UN estimates 50,000 civilians remain trapped in the NFZ.
2009, 27 April: Facing with diplomatic pressure to declare a ceasefire, Sri Lanka says its military is no longer using heavy weaponry and aerial bombing against the remaining few hundred rebels still fighting in the NFZ.
2009, 28 April: With more than 150,000 internally displaced persons (IDPs) in camps in Vavuniya, Jaffna, Mannar and Trincomalee, UN Emergency Relief Coordinator John Holmes urges that civilians who have been screened be given the chance to leave the camps and to rely on friends and family elsewhere.