Despite global and local condemnations, the trend has continued, forcing some state governments to shut schools and fortify others.
Some students have died from these attacks. Some of the abductees escaped or were released after payment of ransoms.
While the military has also been helpful in securing the release of some of these abductees, hundreds of others have remained in captivity as rescue efforts seem to have whittled down with time.
Twenty-two parents have died as the waiting continues following a series of promises from the federal and state governments, as well as security agencies.
Those alive and awaiting the return of their children said the situation had altered their lives as hope for their safe return wanes by the day.
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Tegina Islamiyya School children sighted in Shiroro
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