As censor he raised the character of the senate, removing unfit and unworthy members and promoting good and able men, among them the excellent Julius Agricola.
It was Orduin who first abolished the onerous system of tolls on exports and imports, and established a combination of native merchants for promoting direct commercial relations between Sweden and Russia.
In June 1775, with a view to promoting the union of the colonies, he seconded the nomination of Washington as commander-in-chief of the army.
He says: "The apostles had no thought of appointing festival days, but of promoting a life of blamelessness and piety"; and he attributes the observance of Easter by the church to the perpetuation of an old usage, "just as many other customs have been established."
He strongly promoted the League of Nations in the early part of that year; he attended the International Socialist Conference at Berne; and in Dec. 1920 he paid an informal visit to Ireland in the hope of promoting peace.