In 1774, he was made docent of Gothic antiquities at Uppsala University in consequence of his treatise, "Monumenta svia-gothica vetustioris aevi falso meritoque suspecta".
He was one of the king's secret managers during the troublesome and dangerous Riksdag of 1789, but advised caution and compared the estate of clergy, which at one time held the balance between the jarring orders, to ice which might be walked upon but could not be driven over.
[1] After the king's death Nordin shared in the general disgrace of the Gustavians and lived in retirement at the little town of Härnösand, where he held the post of lector at the gymnasium.
Like Jean Hardouin he got to believe that a great deal of what is called classical literature was compiled by anonymous authors at a much later date, and he used frequently to startle his colleagues, the Gustavian academicians, by his audacious paradoxes.
[1] Nordin left behind him a colossal collection of manuscripts, the so-called Nordinska Samlingarna, which were purchased and presented to Upsala University by Charles XIV John and form the groundwork of the Scriptores rerum Suecicarum medii aevi.