Soyinka likened May 29 to an "inauguration date of the era of darkness, both metaphysical and palpable that has seen a nation of envied material and human endowments groping its way through the twilight of marginal vision into the dark of resignation."
"It marked the descent into the graveyard of energy and light, aborting productivity at birth, and turning a once vibrant, pulsating nation into yet another black hole in the nightly geography of globe," he fumed.
The Nobel laurete maintained that "May 29 marked the inauguration of a spate of assassinations, the likes of which the nation had never known, citing a slain Minister of Justice and Attorney-General.
He recalled that in utter insensitivity to public opinion, the prominent accused "was escorted triumphantly into the legislative chambers and elevated to a position reserved for him by the ruling party.
Soyinka pointed out that the assault on Odi and Zaki Biam, the escalation of tension in the oil-rich Niger-Delta, the third term game, violation of rule of law and the constitution and high scale corruption had their foundation in May 29.
"May 29 inaugurated the handing over of entire states to the rule of self-confessed, self-celebrating, violent prone and proud thugs in defiance of the most minimal pretence of order.
"May 29 marked the degradation of all symbols of authority, a descent into a state of political anomie that will haunt the nation for decades to come," he stressed.
Warning against the continuation of the yearly celebration, Soyinka declared: "The national provocation has gone far enough, but evidently, the culture of appropriate response has yet to learn how far it must go.
"Let those who insist on foisting this degradation on the nation understand that, wherever and whenever symbols of cooption for the perpetuation of a lie are hoisted, they constitute an invitation to tear down the flag".