The document discusses violence and terrorist attacks that occurred in Colombia between 1886 and 2006, including assassinations, bombings, and increases in homicide rates. Key events mentioned include the assassination of presidential candidate Luis Carlos Galan by Pablo Escobar in the 1980s, car bombings that killed over 50 people in Bogota in the 1990s, and continued attacks by guerilla and paramilitary groups such as the FARC through the early 2000s.