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| 1990, June 21 |
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| After a protracted national debate, the Spanish Constitutional Court ruled that the four Herri Batasuna deputies (the political arm of ETA) elected to the Cortes in 1989 could take their seats by swearing an ammended oath to the constitution. | 1 |
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| 1991–92 |
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| A massive industrial crisis came to a head with widespread unrest in steel, coal, shipbuilding, and other sectors, as a result of government efforts to restructure the economy in preparation for the 1993 EC single market. | 2 |
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| 1991, Nov. 17 |
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| Ten thousand neofascists from Spain and elsewhere assembled in Madrid's Plaza Oriente to commemorate the sixteenth anniversary of Franco's death. Throughout the year, right-wing extremist groups, particularly skinheads in Barcelona and Madrid, became increasingly active and vocal, engaging in numerous acts of violence against foreigners residing in Spain. | 3 |
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| Dec. 10 |
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| Illegal immigrants numbering 110,000 (half of whom were from Morroco) met a deadline for amnesty by showing that they had arrived in Spain prior to May 15, 1991, had gainful employment, or were able to set up independent business enterprises. | 4 |
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