1968 - Eta carries out first planned killing: victim is Meliton Manzanas, police chief in Basque city San Sebastian.
1973 - Franco's prime minister, Luis Carrero Blanco, killed when car passes over explosives planted by Eta in Madrid.
1980 - Eta's bloodiest year, nearly 100 killed despite Spain's recent return to democracy.
September 1985 - First Eta car bomb in Madrid. American tourist killed while jogging, 16 civil guards wounded.
July 1986 - 12 civil guards killed in Madrid and 50 injured.
June 1987 - Eta's bloodiest attack so far - 21 shoppers killed when bomb hits Barcelona supermarket. Eta apologises for "mistake".
April 1995 - Popular Party opposition leader Jose Maria Aznar, later to become prime minister, escapes Eta car bomb.
August - Police foil Eta plot to kill King Juan Carlos.
July 1997 - Basque town councillor Miguel Angel Blanco kidnapped and killed.
September 1998 - Eta announces truce.
June 1999 - Government says it held talks with Eta.
November 28th - Eta announces ceasefire to end on December 3rd.
February 22nd, 2000 - Car bombing in Vitoria kills local socialist politician Fernando Buesa and his bodyguard.
September 15th - French police arrest Ignacio Gracia Arregui, alleged top Eta leader.
November 21st - Former socialist health minister Ernest Lluch shot dead in Barcelona.
February 22nd, 2001 - A car explodes killing two people and injuring four in San Sebastian.
November 6th - A car bomb explodes in Madrid, injuring 95.
November 23rd - Two police officers killed in Beasain.
March 4th, 2002 - Police defuse bomb planted at Bilbao stock exchange in name of Eta.
May 1st - Car bomb explodes in Madrid hours
before European Champions League semi-final. Officials say 17 treated for injuries or
shock.
June 21st - Three car bombs explode in a single day in towns of Fuengirola, Marbella and Zaragoza. Seven are injured.
December 4th, 2003 - French police arrest Ibon Fernandez Iradia, a suspected military commander of Eta.
February 18th, 2004 - Eta calls truce in Catalonia.
February 29th - Spanish police intercepted a van carrying more than 500kg of explosives ETA planned to detonate in Madrid.