Question: What was the beginning year of the European debt crisis that particularly affected Portugal, Italy, Greece, and Spain?
Sentence (from "European debt crisis"): Several eurozone member states (Greece, Portugal, Ireland, Spain and Cyprus) were unable to repay or refinance their government debt or to bail out over-indebted banks under their national supervision without the assistance of third parties like other Eurozone countries, the European Central Bank (ECB), or the International Monetary Fund (IMF).
Relevant evidence: No