Which preposition to use with exordiums

of Occurrences 14%

Your representative makes a speech, the exordium of which is Patriotism, the peroration of which is Star-Spangled Banner, and the central plum of which is your coal mine or iron mill.

to Occurrences 2%

He had undoubtedly an excellent ear, and we must conclude he must have succeeded considerably in erotic or pastoral poetry, from the following stanza's, in his Defiance to Envy, which may be considered as an exordium to his poetical writings.

from Occurrences 1%

The kind of cause which has been styled doubtful, if it embraces an examination into the excuses alleged, which is also doubtful, must derive its exordium from that very examination; but if it have some things in it of a creditable nature, and some of a discreditable character, then it will be expedient to try and secure the good-will of the hearer, so that the cause may change its appearance, and seem to be an honourable one.

in Occurrences 1%

Mrs. Berthelin opened her exordium in a tone of high philippic, not even awaiting the formalities of introduction.

on Occurrences 1%

A hesitating, apologetic manner seems to be the national custom for an exordium on all questions.

Which preposition to use with  exordiums